ioquake3 resync to revision 3534 from 3522.

Make Team Arena prevTeamMember command loop around player list
Prevent Q_IsColorString from asserting on negative ascii chars
Add .gitignore for misc/msvc12
OpenGL2: r_cubemapping 2 for box cubemap parallax.
Add r_parallaxMapShadows.
Fix PRINT_ERROR print level missing from CL_RefPrintf
OpenGL2: Fix compiling lightall GLSL on OpenGL 2.1
Add current (custom) resolution to Q3 UI video mode list
Override video mode list in Team Arena UI
OpenGL2: Disable r_cubeMapping if not OpenGL 3.0+
Fix rendering IQM models between model frames
Fix warnings that IQM blendWeights may not be initialized

engine/Makefile

@@ -44,7 +44,7 @@ ifndef BUILD_DEFINES
 endif
 
 # ioquake3 svn version that this is based on
-IOQ3_REVISION = 3522
+IOQ3_REVISION = 3534
 
 #############################################################################
 #

engine/code/cgame/cg_newdraw.c

@@ -151,7 +151,7 @@ void CG_SelectNextPlayer( void ) {
 
 void CG_SelectPrevPlayer( void ) {
 	CG_CheckOrderPending();
-	if (cg_currentSelectedPlayer.integer > 0 && cg_currentSelectedPlayer.integer < numSortedTeamPlayers) {
+	if (cg_currentSelectedPlayer.integer > 0 && cg_currentSelectedPlayer.integer <= numSortedTeamPlayers) {
 		cg_currentSelectedPlayer.integer--;
 	} else {
 		cg_currentSelectedPlayer.integer = numSortedTeamPlayers;

engine/code/client/cl_main.c

@@ -3088,8 +3088,10 @@ static __attribute__ ((format (printf, 2, 3))) void QDECL CL_RefPrintf( int prin
 		Com_Printf ("%s", msg);
 	} else if ( print_level == PRINT_WARNING ) {
 		Com_Printf (S_COLOR_YELLOW "%s", msg);		// yellow
+	} else if ( print_level == PRINT_ERROR ) {
+		Com_Printf (S_COLOR_RED "%s", msg);			// red
 	} else if ( print_level == PRINT_DEVELOPER ) {
-		Com_DPrintf (S_COLOR_RED "%s", msg);		// red
+		Com_DPrintf (S_COLOR_RED "%s", msg);		// red - developer only
 	}
 }
 

engine/code/q3_ui/ui_video.c

@@ -430,6 +430,7 @@ static int resToRatio[ MAX_RESOLUTIONS ];
 
 static char resbuf[ MAX_STRING_CHARS ];
 static const char* detectedResolutions[ MAX_RESOLUTIONS ];
+static char currentResolution[ 20 ];
 
 static const char** resolutions = builtinResolutions;
 static qboolean resolutionsDetected = qfalse;
@@ -559,7 +560,7 @@ GraphicsOptions_GetResolutions
 */
 static void GraphicsOptions_GetResolutions( void )
 {
-	Q_strncpyz(resbuf, UI_Cvar_VariableString("r_availableModes"), sizeof(resbuf));
+	trap_Cvar_VariableStringBuffer("r_availableModes", resbuf, sizeof(resbuf));
 	if(*resbuf)
 	{
 		char* s = resbuf;
@@ -573,11 +574,26 @@ static void GraphicsOptions_GetResolutions( void )
 		}
 		detectedResolutions[ i ] = NULL;
 
-		if( i > 0 )
+		// add custom resolution if not in mode list
+		if ( i < ARRAY_LEN(detectedResolutions)-1 )
 		{
-			resolutions = detectedResolutions;
+			Com_sprintf( currentResolution, sizeof ( currentResolution ), "%dx%d", uis.glconfig.vidWidth, uis.glconfig.vidHeight );
-			resolutionsDetected = qtrue;
+
+			for( i = 0; detectedResolutions[ i ]; i++ )
+			{
+				if ( strcmp( detectedResolutions[ i ], currentResolution ) == 0 )
+					break;
+			}
+
+			if ( detectedResolutions[ i ] == NULL )
+			{
+				detectedResolutions[ i++ ] = currentResolution;
+				detectedResolutions[ i ] = NULL;
+			}
 		}
+
+		resolutions = detectedResolutions;
+		resolutionsDetected = qtrue;
 	}
 }
 

engine/code/qcommon/q_shared.c

@@ -24,6 +24,28 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 // q_shared.c -- stateless support routines that are included in each code dll
 #include "q_shared.h"
 
+// ^[0-9a-zA-Z]
+qboolean Q_IsColorString(const char *p) {
+	if (!p)
+		return qfalse;
+
+	if (p[0] != Q_COLOR_ESCAPE)
+		return qfalse;
+
+	if (p[1] == 0)
+		return qfalse;
+
+	// isalnum expects a signed integer in the range -1 (EOF) to 255, or it might assert on undefined behaviour
+	// a dereferenced char pointer has the range -128 to 127, so we just need to rangecheck the negative part
+	if (p[1] < 0)
+		return qfalse;
+
+	if (isalnum(p[1]) == 0)
+		return qfalse;
+
+	return qtrue;
+}
+
 float Com_Clamp( float min, float max, float value ) {
 	if ( value < min ) {
 		return min;

engine/code/qcommon/q_shared.h

@@ -387,6 +387,8 @@ typedef vec_t vec3_t[3];
 typedef vec_t vec4_t[4];
 typedef vec_t vec5_t[5];
 
+typedef vec_t quat_t[4];
+
 typedef	int	fixed4_t;
 typedef	int	fixed8_t;
 typedef	int	fixed16_t;
@@ -460,7 +462,7 @@ extern	vec4_t		colorMdGrey;
 extern	vec4_t		colorDkGrey;
 
 #define Q_COLOR_ESCAPE	'^'
-#define Q_IsColorString(p)	((p) && *(p) == Q_COLOR_ESCAPE && *((p)+1) && isalnum(*((p)+1))) // ^[0-9a-zA-Z]
+qboolean Q_IsColorString(const char *p);  // ^[0-9a-zA-Z]
 
 #define COLOR_BLACK	'0'
 #define COLOR_RED	'1'
@@ -633,6 +635,8 @@ typedef struct {
 
 #define Byte4Copy(a,b)			((b)[0]=(a)[0],(b)[1]=(a)[1],(b)[2]=(a)[2],(b)[3]=(a)[3])
 
+#define QuatCopy(a,b)			((b)[0]=(a)[0],(b)[1]=(a)[1],(b)[2]=(a)[2],(b)[3]=(a)[3])
+
 #define	SnapVector(v) {v[0]=((int)(v[0]));v[1]=((int)(v[1]));v[2]=((int)(v[2]));}
 // just in case you don't want to use the macros
 vec_t _DotProduct( const vec3_t v1, const vec3_t v2 );

engine/code/renderergl1/tr_local.h

@@ -589,6 +589,12 @@ typedef struct {
 	drawVert_t		*verts;
 } srfTriangles_t;
 
+typedef struct {
+	vec3_t translate;
+	quat_t rotate;
+	vec3_t scale;
+} iqmTransform_t;
+
 // inter-quake-model
 typedef struct {
 	int		num_vertexes;
@@ -623,8 +629,9 @@ typedef struct {
 
 	char		*jointNames;
 	int		*jointParents;
-	float		*jointMats;
+	float		*bindJoints; // [num_joints * 12]
-	float		*poseMats;
+	float		*invBindJoints; // [num_joints * 12]
+	iqmTransform_t	*poses; // [num_frames * num_poses]
 	float		*bounds;
 } iqmData_t;
 

engine/code/renderergl1/tr_model_iqm.c

@@ -2,6 +2,7 @@
 ===========================================================================
 Copyright (C) 2011 Thilo Schulz <thilo@tjps.eu>
 Copyright (C) 2011 Matthias Bentrup <matthias.bentrup@googlemail.com>
+Copyright (C) 2011-2019 Zack Middleton <zturtleman@gmail.com>
 
 This file is part of Quake III Arena source code.
 
@@ -44,7 +45,7 @@ static qboolean IQM_CheckRange( iqmHeader_t *header, int offset,
 }
 // "multiply" 3x4 matrices, these are assumed to be the top 3 rows
 // of a 4x4 matrix with the last row = (0 0 0 1)
-static void Matrix34Multiply( float *a, float *b, float *out ) {
+static void Matrix34Multiply( const float *a, const float *b, float *out ) {
 	out[ 0] = a[0] * b[0] + a[1] * b[4] + a[ 2] * b[ 8];
 	out[ 1] = a[0] * b[1] + a[1] * b[5] + a[ 2] * b[ 9];
 	out[ 2] = a[0] * b[2] + a[1] * b[6] + a[ 2] * b[10];
@@ -58,23 +59,7 @@ static void Matrix34Multiply( float *a, float *b, float *out ) {
 	out[10] = a[8] * b[2] + a[9] * b[6] + a[10] * b[10];
 	out[11] = a[8] * b[3] + a[9] * b[7] + a[10] * b[11] + a[11];
 }
-static void InterpolateMatrix( float *a, float *b, float lerp, float *mat ) {
+static void JointToMatrix( const quat_t rot, const vec3_t scale, const vec3_t trans,
-	float unLerp = 1.0f - lerp;
-
-	mat[ 0] = a[ 0] * unLerp + b[ 0] * lerp;
-	mat[ 1] = a[ 1] * unLerp + b[ 1] * lerp;
-	mat[ 2] = a[ 2] * unLerp + b[ 2] * lerp;
-	mat[ 3] = a[ 3] * unLerp + b[ 3] * lerp;
-	mat[ 4] = a[ 4] * unLerp + b[ 4] * lerp;
-	mat[ 5] = a[ 5] * unLerp + b[ 5] * lerp;
-	mat[ 6] = a[ 6] * unLerp + b[ 6] * lerp;
-	mat[ 7] = a[ 7] * unLerp + b[ 7] * lerp;
-	mat[ 8] = a[ 8] * unLerp + b[ 8] * lerp;
-	mat[ 9] = a[ 9] * unLerp + b[ 9] * lerp;
-	mat[10] = a[10] * unLerp + b[10] * lerp;
-	mat[11] = a[11] * unLerp + b[11] * lerp;
-}
-static void JointToMatrix( vec4_t rot, vec3_t scale, vec3_t trans,
 			   float *mat ) {
 	float xx = 2.0f * rot[0] * rot[0];
 	float yy = 2.0f * rot[1] * rot[1];
@@ -99,8 +84,7 @@ static void JointToMatrix( vec4_t rot, vec3_t scale, vec3_t trans,
 	mat[10] = scale[2] * (1.0f - (xx + yy));
 	mat[11] = trans[2];
 }
-static void Matrix34Invert( float *inMat, float *outMat )
+static void Matrix34Invert( const float *inMat, float *outMat ) {
-{
 	vec3_t trans;
 	float invSqrLen, *v;
 
@@ -120,6 +104,61 @@ static void Matrix34Invert( float *inMat, float *outMat )
 	outMat[ 7] = -DotProduct(outMat + 4, trans);
 	outMat[11] = -DotProduct(outMat + 8, trans);
 }
+static void QuatSlerp(const quat_t from, const quat_t _to, float fraction, quat_t out) {
+	float angle, cosAngle, sinAngle, backlerp, lerp;
+	quat_t to;
+
+	// cos() of angle
+	cosAngle = from[0] * _to[0] + from[1] * _to[1] + from[2] * _to[2] + from[3] * _to[3];
+
+	// negative handling is needed for taking shortest path (required for model joints)
+	if ( cosAngle < 0.0f ) {
+		cosAngle = -cosAngle;
+		to[0] = - _to[0];
+		to[1] = - _to[1];
+		to[2] = - _to[2];
+		to[3] = - _to[3];
+	} else {
+		QuatCopy( _to, to );
+	}
+
+	if ( cosAngle < 0.999999f ) {
+		// spherical lerp (slerp)
+		angle = acosf( cosAngle );
+		sinAngle = sinf( angle );
+		backlerp = sinf( ( 1.0f - fraction ) * angle ) / sinAngle;
+		lerp = sinf( fraction * angle ) / sinAngle;
+	} else {
+		// linear lerp
+		backlerp = 1.0f - fraction;
+		lerp = fraction;
+	}
+
+	out[0] = from[0] * backlerp + to[0] * lerp;
+	out[1] = from[1] * backlerp + to[1] * lerp;
+	out[2] = from[2] * backlerp + to[2] * lerp;
+	out[3] = from[3] * backlerp + to[3] * lerp;
+}
+static vec_t QuatNormalize2( const quat_t v, quat_t out) {
+	float	length, ilength;
+
+	length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2] + v[3]*v[3];
+
+	if (length) {
+		/* writing it this way allows gcc to recognize that rsqrt can be used */
+		ilength = 1/(float)sqrt (length);
+		/* sqrt(length) = length * (1 / sqrt(length)) */
+		length *= ilength;
+		out[0] = v[0]*ilength;
+		out[1] = v[1]*ilength;
+		out[2] = v[2]*ilength;
+		out[3] = v[3]*ilength;
+	} else {
+		out[0] = out[1] = out[2] = out[3] = 0;
+	}
+
+	return length;
+}
 
 /*
 =================
@@ -139,7 +178,7 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 	unsigned short		*framedata;
 	char			*str;
 	int			i, j, k;
-	float			jointInvMats[IQM_MAX_JOINTS * 12] = {0.0f};
+	iqmTransform_t		*transform;
 	float			*mat, *matInv;
 	size_t			size, joint_names;
 	byte			*dataPtr;
@@ -559,10 +598,11 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 	if( header->num_joints ) {
 		size += joint_names;								// joint names
 		size += header->num_joints * sizeof(int);			// joint parents
-		size += header->num_joints * 12 * sizeof( float );	// joint mats
+		size += header->num_joints * 12 * sizeof(float);	// bind joint matricies
+		size += header->num_joints * 12 * sizeof(float);	// inverse bind joint matricies
 	}
 	if( header->num_poses ) {
-		size += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
+		size += header->num_poses * header->num_frames * sizeof(iqmTransform_t); // pose transforms
 	}
 	if( header->ofs_bounds ) {
 		size += header->num_frames * 6 * sizeof(float);		// model bounds
@@ -633,12 +673,15 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 		iqmData->jointParents = (int*)dataPtr;
 		dataPtr += header->num_joints * sizeof(int);		// joint parents
 
-		iqmData->jointMats = (float*)dataPtr;
+		iqmData->bindJoints = (float*)dataPtr;
-		dataPtr += header->num_joints * 12 * sizeof( float ); // joint mats
+		dataPtr += header->num_joints * 12 * sizeof(float);		// bind joint matricies
+
+		iqmData->invBindJoints = (float*)dataPtr;
+		dataPtr += header->num_joints * 12 * sizeof(float);		// inverse bind joint matricies
 	}
 	if( header->num_poses ) {
-		iqmData->poseMats = (float*)dataPtr;
+		iqmData->poses = (iqmTransform_t*)dataPtr;
-		dataPtr += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
+		dataPtr += header->num_poses * header->num_frames * sizeof(iqmTransform_t); // pose transforms
 	}
 	if( header->ofs_bounds ) {
 		iqmData->bounds = (float*)dataPtr;
@@ -804,22 +847,23 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 			iqmData->jointParents[i] = joint->parent;
 		}
 
-		// calculate joint matrices and their inverses
+		// calculate bind joint matrices and their inverses
-		// joint inverses are needed only until the pose matrices are calculated
+		mat = iqmData->bindJoints;
-		mat = iqmData->jointMats;
+		matInv = iqmData->invBindJoints;
-		matInv = jointInvMats;
 		joint = (iqmJoint_t *)((byte *)header + header->ofs_joints);
 		for( i = 0; i < header->num_joints; i++, joint++ ) {
 			float baseFrame[12], invBaseFrame[12];
 
+			QuatNormalize2( joint->rotate, joint->rotate );
+
 			JointToMatrix( joint->rotate, joint->scale, joint->translate, baseFrame );
 			Matrix34Invert( baseFrame, invBaseFrame );
 
 			if ( joint->parent >= 0 )
 			{
-				Matrix34Multiply( iqmData->jointMats + 12 * joint->parent, baseFrame, mat );
+				Matrix34Multiply( iqmData->bindJoints + 12 * joint->parent, baseFrame, mat );
 				mat += 12;
-				Matrix34Multiply( invBaseFrame, jointInvMats + 12 * joint->parent, matInv );
+				Matrix34Multiply( invBaseFrame, iqmData->invBindJoints + 12 * joint->parent, matInv );
 				matInv += 12;
 			}
 			else
@@ -834,16 +878,15 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 
 	if( header->num_poses )
 	{
-		// calculate pose matrices
+		// calculate pose transforms
+		transform = iqmData->poses;
 		framedata = (unsigned short *)((byte *)header + header->ofs_frames);
-		mat = iqmData->poseMats;
 		for( i = 0; i < header->num_frames; i++ ) {
 			pose = (iqmPose_t *)((byte *)header + header->ofs_poses);
-			for( j = 0; j < header->num_poses; j++, pose++ ) {
+			for( j = 0; j < header->num_poses; j++, pose++, transform++ ) {
 				vec3_t	translate;
-				vec4_t	rotate;
+				quat_t	rotate;
 				vec3_t	scale;
-				float	mat1[12], mat2[12];
 
 				translate[0] = pose->channeloffset[0];
 				if( pose->mask & 0x001)
@@ -878,18 +921,9 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 				if( pose->mask & 0x200)
 					scale[2] += *framedata++ * pose->channelscale[9];
 
-				// construct transformation matrix
+				VectorCopy( translate, transform->translate );
-				JointToMatrix( rotate, scale, translate, mat1 );
+				QuatNormalize2( rotate, transform->rotate );
-
+				VectorCopy( scale, transform->scale );
-				if( pose->parent >= 0 ) {
-					Matrix34Multiply( iqmData->jointMats + 12 * pose->parent,
-							  mat1, mat2 );
-				} else {
-					Com_Memcpy( mat2, mat1, sizeof(mat1) );
-				}
-
-				Matrix34Multiply( mat2, jointInvMats + 12 * j, mat );
-				mat += 12;
 			}
 		}
 	}
@@ -1128,37 +1162,59 @@ void R_AddIQMSurfaces( trRefEntity_t *ent ) {
 
 
 static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
-			      float backlerp, float *mat ) {
+			      float backlerp, float *poseMats ) {
-	float	*mat1, *mat2;
+	iqmTransform_t relativeJoints[IQM_MAX_JOINTS];
-	int	*joint = data->jointParents;
+	iqmTransform_t *relativeJoint;
-	int	i;
+	const iqmTransform_t *pose;
+	const iqmTransform_t *oldpose;
+	const int *jointParent;
+	const float *invBindMat;
+	float *poseMat, lerp;
+	int i;
 
+	relativeJoint = relativeJoints;
+
+	// copy or lerp animation frame pose
 	if ( oldframe == frame ) {
-		mat1 = data->poseMats + 12 * data->num_poses * frame;
+		pose = &data->poses[frame * data->num_poses];
-		for( i = 0; i < data->num_poses; i++, joint++ ) {
+		for ( i = 0; i < data->num_poses; i++, pose++, relativeJoint++ ) {
-			if( *joint >= 0 ) {
+			VectorCopy( pose->translate, relativeJoint->translate );
-				Matrix34Multiply( mat + 12 * *joint,
+			QuatCopy( pose->rotate, relativeJoint->rotate );
-						  mat1 + 12*i, mat + 12*i );
+			VectorCopy( pose->scale, relativeJoint->scale );
-			} else {
-				Com_Memcpy( mat + 12*i, mat1 + 12*i, 12 * sizeof(float) );
-			}
 		}
-	} else  {
+	} else {
-		mat1 = data->poseMats + 12 * data->num_poses * frame;
+		lerp = 1.0f - backlerp;
-		mat2 = data->poseMats + 12 * data->num_poses * oldframe;
+		pose = &data->poses[frame * data->num_poses];
+		oldpose = &data->poses[oldframe * data->num_poses];
+		for ( i = 0; i < data->num_poses; i++, oldpose++, pose++, relativeJoint++ ) {
+			relativeJoint->translate[0] = oldpose->translate[0] * backlerp + pose->translate[0] * lerp;
+			relativeJoint->translate[1] = oldpose->translate[1] * backlerp + pose->translate[1] * lerp;
+			relativeJoint->translate[2] = oldpose->translate[2] * backlerp + pose->translate[2] * lerp;
 
-		for( i = 0; i < data->num_poses; i++, joint++ ) {
+			relativeJoint->scale[0] = oldpose->scale[0] * backlerp + pose->scale[0] * lerp;
-			if( *joint >= 0 ) {
+			relativeJoint->scale[1] = oldpose->scale[1] * backlerp + pose->scale[1] * lerp;
-				float tmpMat[12];
+			relativeJoint->scale[2] = oldpose->scale[2] * backlerp + pose->scale[2] * lerp;
-				InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
-						   backlerp, tmpMat );
-				Matrix34Multiply( mat + 12 * *joint,
-						  tmpMat, mat + 12*i );
 
-			} else {
+			QuatSlerp( oldpose->rotate, pose->rotate, lerp, relativeJoint->rotate );
-				InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
+		}
-						   backlerp, mat + 12*i );
+	}
-			}
+
+	// multiply by inverse of bind pose and parent 'pose mat' (bind pose transform matrix)
+	relativeJoint = relativeJoints;
+	jointParent = data->jointParents;
+	invBindMat = data->invBindJoints;
+	poseMat = poseMats;
+	for ( i = 0; i < data->num_poses; i++, relativeJoint++, jointParent++, invBindMat += 12, poseMat += 12 ) {
+		float mat1[12], mat2[12];
+
+		JointToMatrix( relativeJoint->rotate, relativeJoint->scale, relativeJoint->translate, mat1 );
+
+		if ( *jointParent >= 0 ) {
+			Matrix34Multiply( &data->bindJoints[(*jointParent)*12], mat1, mat2 );
+			Matrix34Multiply( mat2, invBindMat, mat1 );
+			Matrix34Multiply( &poseMats[(*jointParent)*12], mat1, poseMat );
+		} else {
+			Matrix34Multiply( mat1, invBindMat, poseMat );
 		}
 	}
 }
@@ -1169,7 +1225,7 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
 	int	i;
 
 	if ( data->num_poses == 0 ) {
-		Com_Memcpy( mat, data->jointMats, data->num_joints * 12 * sizeof(float) );
+		Com_Memcpy( mat, data->bindJoints, data->num_joints * 12 * sizeof(float) );
 		return;
 	}
 
@@ -1181,7 +1237,7 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
 
 		Com_Memcpy(outmat, mat1, sizeof(outmat));
 
-		Matrix34Multiply( outmat, data->jointMats + 12*i, mat1 );
+		Matrix34Multiply( outmat, data->bindJoints + 12*i, mat1 );
 	}
 }
 
@@ -1246,19 +1302,20 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
 			float *nrmMat = &influenceNrmMat[9*i];
 			int	j;
 			float	blendWeights[4];
-			int		numWeights;
 
-			for ( numWeights = 0; numWeights < 4; numWeights++ ) {
+			if ( data->blendWeightsType == IQM_FLOAT ) {
-				if ( data->blendWeightsType == IQM_FLOAT )
+				blendWeights[0] = data->influenceBlendWeights.f[4*influence + 0];
-					blendWeights[numWeights] = data->influenceBlendWeights.f[4*influence + numWeights];
+				blendWeights[1] = data->influenceBlendWeights.f[4*influence + 1];
-				else
+				blendWeights[2] = data->influenceBlendWeights.f[4*influence + 2];
-					blendWeights[numWeights] = (float)data->influenceBlendWeights.b[4*influence + numWeights] / 255.0f;
+				blendWeights[3] = data->influenceBlendWeights.f[4*influence + 3];
-
+			} else {
-				if ( blendWeights[numWeights] <= 0.0f )
+				blendWeights[0] = (float)data->influenceBlendWeights.b[4*influence + 0] / 255.0f;
-					break;
+				blendWeights[1] = (float)data->influenceBlendWeights.b[4*influence + 1] / 255.0f;
+				blendWeights[2] = (float)data->influenceBlendWeights.b[4*influence + 2] / 255.0f;
+				blendWeights[3] = (float)data->influenceBlendWeights.b[4*influence + 3] / 255.0f;
 			}
 
-			if ( numWeights == 0 ) {
+			if ( blendWeights[0] <= 0.0f ) {
 				// no blend joint, use identity matrix.
 				vtxMat[0] = identityMatrix[0];
 				vtxMat[1] = identityMatrix[1];
@@ -1288,7 +1345,11 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
 				vtxMat[10] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 10];
 				vtxMat[11] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 11];
 
-				for( j = 1; j < numWeights; j++ ) {
+				for( j = 1; j < 3; j++ ) {
+					if ( blendWeights[j] <= 0.0f ) {
+						break;
+					}
+
 					vtxMat[0] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 0];
 					vtxMat[1] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 1];
 					vtxMat[2] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 2];

engine/code/renderergl2/glsl/lightall_fp.glsl

@@ -143,6 +143,35 @@ float RayIntersectDisplaceMap(vec2 dp, vec2 ds, sampler2D normalMap)
 
 	return bestDepth;
 }
+
+float LightRay(vec2 dp, vec2 ds, sampler2D normalMap)
+{
+	const int linearSearchSteps = 16;
+
+	// current size of search window
+	float size = 1.0 / float(linearSearchSteps);
+
+	// current height from initial texel depth
+	float height = 0.0;
+
+	float startDepth = SampleDepth(normalMap, dp);
+
+	// find a collision or escape
+	for(int i = 0; i < linearSearchSteps - 1; ++i)
+	{
+		height += size;
+
+		if (startDepth < height)
+			return 1.0;
+		
+		float t = SampleDepth(normalMap, dp + ds * height);
+
+		if (startDepth > t + height)
+			return 0.0;
+	}
+
+	return 1.0;
+}
 #endif
 
 vec3 CalcDiffuse(vec3 diffuseAlbedo, float NH, float EH, float roughness)
@@ -193,6 +222,37 @@ float CalcLightAttenuation(float point, float normDist)
 	return attenuation;
 }
 
+#if defined(USE_BOX_CUBEMAP_PARALLAX)
+vec4 hitCube(vec3 ray, vec3 pos, vec3 invSize, float lod, samplerCube tex)
+{
+	// find any hits on cubemap faces facing the camera
+	vec3 scale = (sign(ray) - pos) / ray;
+
+	// find the nearest hit
+	float minScale = min(min(scale.x, scale.y), scale.z);
+
+	// if the nearest hit is behind the camera, ignore
+	// should not be necessary as long as pos is inside the cube
+	//if (minScale < 0.0)
+		//return vec4(0.0);
+
+	// calculate the hit position, that's our texture coordinates
+	vec3 tc = pos + ray * minScale;
+
+	// if the texture coordinates are outside the cube, ignore
+	// necessary since we're not fading out outside the cube
+	if (any(greaterThan(abs(tc), vec3(1.00001))))
+		return vec4(0.0);
+
+	// fade out when approaching the cubemap edges
+	//vec3 fade3 = abs(pos);
+	//float fade = max(max(fade3.x, fade3.y), fade3.z);
+	//fade = clamp(1.0 - fade, 0.0, 1.0);
+			
+	//return vec4(textureCubeLod(tex, tc, lod).rgb * fade, fade);
+	return vec4(textureCubeLod(tex, tc, lod).rgb, 1.0);
+}
+#endif
 
 void main()
 {
@@ -222,7 +282,7 @@ void main()
 	vec2 texCoords = var_TexCoords.xy;
 
 #if defined(USE_PARALLAXMAP)
-	vec3 offsetDir = viewDir * tangentToWorld;
+	vec3 offsetDir = E * tangentToWorld;
 
 	offsetDir.xy *= -u_NormalScale.a / offsetDir.z;
 
@@ -289,6 +349,13 @@ void main()
     #endif
   #endif
 
+  #if defined(USE_PARALLAXMAP) && defined(USE_PARALLAXMAP_SHADOWS)
+	offsetDir = L * tangentToWorld;
+	offsetDir.xy *= u_NormalScale.a / offsetDir.z;
+	lightColor *= LightRay(texCoords, offsetDir.xy, u_NormalMap);
+  #endif
+
+
   #if !defined(USE_LIGHT_VECTOR)
 	ambientColor = lightColor;
 	float surfNL = clamp(dot(var_Normal.xyz, L), 0.0, 1.0);
@@ -374,7 +441,11 @@ void main()
 	// from http://seblagarde.wordpress.com/2012/09/29/image-based-lighting-approaches-and-parallax-corrected-cubemap/
 	vec3 parallax = u_CubeMapInfo.xyz + u_CubeMapInfo.w * viewDir;
 
+  #if defined(USE_BOX_CUBEMAP_PARALLAX)
+	vec3 cubeLightColor = hitCube(R * u_CubeMapInfo.w, parallax, u_CubeMapInfo.www, ROUGHNESS_MIPS * roughness, u_CubeMap).rgb * u_EnableTextures.w;
+  #else
 	vec3 cubeLightColor = textureCubeLod(u_CubeMap, R + parallax, ROUGHNESS_MIPS * roughness).rgb * u_EnableTextures.w;
+  #endif
 
 	// normalize cubemap based on last roughness mip (~diffuse)
 	// multiplying cubemap values by lighting below depends on either this or the cubemap being normalized at generation
@@ -423,6 +494,12 @@ void main()
 	// enable when point lights are supported as primary lights
 	//lightColor *= CalcLightAttenuation(float(u_PrimaryLightDir.w > 0.0), u_PrimaryLightDir.w / sqrLightDist);
 
+  #if defined(USE_PARALLAXMAP) && defined(USE_PARALLAXMAP_SHADOWS)
+	offsetDir = L2 * tangentToWorld;
+	offsetDir.xy *= u_NormalScale.a / offsetDir.z;
+	lightColor *= LightRay(texCoords, offsetDir.xy, u_NormalMap);
+  #endif
+
 	gl_FragColor.rgb += lightColor * reflectance * NL2;
   #endif
 

engine/code/renderergl2/tr_glsl.c

@@ -1122,6 +1122,9 @@ void GLSL_InitGPUShaders(void)
 					Q_strcat(extradefines, 1024, "#define USE_PARALLAXMAP\n");
 					if (r_parallaxMapping->integer > 1)
 						Q_strcat(extradefines, 1024, "#define USE_RELIEFMAP\n");
+
+					if (r_parallaxMapShadows->integer)
+						Q_strcat(extradefines, 1024, "#define USE_PARALLAXMAP_SHADOWS\n");
 				}
 			}
 
@@ -1129,9 +1132,15 @@ void GLSL_InitGPUShaders(void)
 				Q_strcat(extradefines, 1024, "#define USE_SPECULARMAP\n");
 
 			if (r_cubeMapping->integer)
+			{
 				Q_strcat(extradefines, 1024, "#define USE_CUBEMAP\n");
+				if (r_cubeMapping->integer == 2)
+					Q_strcat(extradefines, 1024, "#define USE_BOX_CUBEMAP_PARALLAX\n");
+			}
 			else if (r_deluxeSpecular->value > 0.000001f)
+			{
 				Q_strcat(extradefines, 1024, va("#define r_deluxeSpecular %f\n", r_deluxeSpecular->value));
+			}
 
 			switch (r_glossType->integer)
 			{

engine/code/renderergl2/tr_init.c

@@ -131,6 +131,7 @@ cvar_t  *r_normalMapping;
 cvar_t  *r_specularMapping;
 cvar_t  *r_deluxeMapping;
 cvar_t  *r_parallaxMapping;
+cvar_t  *r_parallaxMapShadows;
 cvar_t  *r_cubeMapping;
 cvar_t  *r_cubemapSize;
 cvar_t  *r_deluxeSpecular;
@@ -284,6 +285,12 @@ static void InitOpenGL( void )
 		}
 	}
 
+	// check for GLSL function textureCubeLod()
+	if ( r_cubeMapping->integer && !QGL_VERSION_ATLEAST( 3, 0 ) ) {
+		ri.Printf( PRINT_WARNING, "WARNING: Disabled r_cubeMapping because it requires OpenGL 3.0\n" );
+		ri.Cvar_Set( "r_cubeMapping", "0" );
+	}
+
 	// set default state
 	GL_SetDefaultState();
 }
@@ -1235,6 +1242,7 @@ void R_Register( void )
 	r_specularMapping = ri.Cvar_Get( "r_specularMapping", "1", CVAR_ARCHIVE | CVAR_LATCH );
 	r_deluxeMapping = ri.Cvar_Get( "r_deluxeMapping", "1", CVAR_ARCHIVE | CVAR_LATCH );
 	r_parallaxMapping = ri.Cvar_Get( "r_parallaxMapping", "0", CVAR_ARCHIVE | CVAR_LATCH );
+	r_parallaxMapShadows = ri.Cvar_Get( "r_parallaxMapShadows", "0", CVAR_ARCHIVE | CVAR_LATCH );
 	r_cubeMapping = ri.Cvar_Get( "r_cubeMapping", "0", CVAR_ARCHIVE | CVAR_LATCH );
 	r_cubemapSize = ri.Cvar_Get( "r_cubemapSize", "128", CVAR_ARCHIVE | CVAR_LATCH );
 	r_deluxeSpecular = ri.Cvar_Get("r_deluxeSpecular", "0.3", CVAR_ARCHIVE | CVAR_LATCH);

engine/code/renderergl2/tr_local.h

@@ -954,6 +954,12 @@ typedef struct srfBspSurface_s
 	float			*heightLodError;
 } srfBspSurface_t;
 
+typedef struct {
+	vec3_t translate;
+	quat_t rotate;
+	vec3_t scale;
+} iqmTransform_t;
+
 // inter-quake-model
 typedef struct {
 	int		num_vertexes;
@@ -988,8 +994,9 @@ typedef struct {
 
 	char		*jointNames;
 	int		*jointParents;
-	float		*jointMats;
+	float		*bindJoints; // [num_joints * 12]
-	float		*poseMats;
+	float		*invBindJoints; // [num_joints * 12]
+	iqmTransform_t	*poses; // [num_frames * num_poses]
 	float		*bounds;
 
 	int		numVaoSurfaces;
@@ -1771,6 +1778,7 @@ extern  cvar_t  *r_normalMapping;
 extern  cvar_t  *r_specularMapping;
 extern  cvar_t  *r_deluxeMapping;
 extern  cvar_t  *r_parallaxMapping;
+extern  cvar_t  *r_parallaxMapShadows;
 extern  cvar_t  *r_cubeMapping;
 extern  cvar_t  *r_cubemapSize;
 extern  cvar_t  *r_deluxeSpecular;

engine/code/renderergl2/tr_model_iqm.c

@@ -2,6 +2,7 @@
 ===========================================================================
 Copyright (C) 2011 Thilo Schulz <thilo@tjps.eu>
 Copyright (C) 2011 Matthias Bentrup <matthias.bentrup@googlemail.com>
+Copyright (C) 2011-2019 Zack Middleton <zturtleman@gmail.com>
 
 This file is part of Quake III Arena source code.
 
@@ -44,7 +45,7 @@ static qboolean IQM_CheckRange( iqmHeader_t *header, int offset,
 }
 // "multiply" 3x4 matrices, these are assumed to be the top 3 rows
 // of a 4x4 matrix with the last row = (0 0 0 1)
-static void Matrix34Multiply( float *a, float *b, float *out ) {
+static void Matrix34Multiply( const float *a, const float *b, float *out ) {
 	out[ 0] = a[0] * b[0] + a[1] * b[4] + a[ 2] * b[ 8];
 	out[ 1] = a[0] * b[1] + a[1] * b[5] + a[ 2] * b[ 9];
 	out[ 2] = a[0] * b[2] + a[1] * b[6] + a[ 2] * b[10];
@@ -58,23 +59,7 @@ static void Matrix34Multiply( float *a, float *b, float *out ) {
 	out[10] = a[8] * b[2] + a[9] * b[6] + a[10] * b[10];
 	out[11] = a[8] * b[3] + a[9] * b[7] + a[10] * b[11] + a[11];
 }
-static void InterpolateMatrix( float *a, float *b, float lerp, float *mat ) {
+static void JointToMatrix( const quat_t rot, const vec3_t scale, const vec3_t trans,
-	float unLerp = 1.0f - lerp;
-
-	mat[ 0] = a[ 0] * unLerp + b[ 0] * lerp;
-	mat[ 1] = a[ 1] * unLerp + b[ 1] * lerp;
-	mat[ 2] = a[ 2] * unLerp + b[ 2] * lerp;
-	mat[ 3] = a[ 3] * unLerp + b[ 3] * lerp;
-	mat[ 4] = a[ 4] * unLerp + b[ 4] * lerp;
-	mat[ 5] = a[ 5] * unLerp + b[ 5] * lerp;
-	mat[ 6] = a[ 6] * unLerp + b[ 6] * lerp;
-	mat[ 7] = a[ 7] * unLerp + b[ 7] * lerp;
-	mat[ 8] = a[ 8] * unLerp + b[ 8] * lerp;
-	mat[ 9] = a[ 9] * unLerp + b[ 9] * lerp;
-	mat[10] = a[10] * unLerp + b[10] * lerp;
-	mat[11] = a[11] * unLerp + b[11] * lerp;
-}
-static void JointToMatrix( vec4_t rot, vec3_t scale, vec3_t trans,
 			   float *mat ) {
 	float xx = 2.0f * rot[0] * rot[0];
 	float yy = 2.0f * rot[1] * rot[1];
@@ -99,8 +84,7 @@ static void JointToMatrix( vec4_t rot, vec3_t scale, vec3_t trans,
 	mat[10] = scale[2] * (1.0f - (xx + yy));
 	mat[11] = trans[2];
 }
-static void Matrix34Invert( float *inMat, float *outMat )
+static void Matrix34Invert( const float *inMat, float *outMat ) {
-{
 	vec3_t trans;
 	float invSqrLen, *v;
 
@@ -120,6 +104,61 @@ static void Matrix34Invert( float *inMat, float *outMat )
 	outMat[ 7] = -DotProduct(outMat + 4, trans);
 	outMat[11] = -DotProduct(outMat + 8, trans);
 }
+static void QuatSlerp(const quat_t from, const quat_t _to, float fraction, quat_t out) {
+	float angle, cosAngle, sinAngle, backlerp, lerp;
+	quat_t to;
+
+	// cos() of angle
+	cosAngle = from[0] * _to[0] + from[1] * _to[1] + from[2] * _to[2] + from[3] * _to[3];
+
+	// negative handling is needed for taking shortest path (required for model joints)
+	if ( cosAngle < 0.0f ) {
+		cosAngle = -cosAngle;
+		to[0] = - _to[0];
+		to[1] = - _to[1];
+		to[2] = - _to[2];
+		to[3] = - _to[3];
+	} else {
+		QuatCopy( _to, to );
+	}
+
+	if ( cosAngle < 0.999999f ) {
+		// spherical lerp (slerp)
+		angle = acosf( cosAngle );
+		sinAngle = sinf( angle );
+		backlerp = sinf( ( 1.0f - fraction ) * angle ) / sinAngle;
+		lerp = sinf( fraction * angle ) / sinAngle;
+	} else {
+		// linear lerp
+		backlerp = 1.0f - fraction;
+		lerp = fraction;
+	}
+
+	out[0] = from[0] * backlerp + to[0] * lerp;
+	out[1] = from[1] * backlerp + to[1] * lerp;
+	out[2] = from[2] * backlerp + to[2] * lerp;
+	out[3] = from[3] * backlerp + to[3] * lerp;
+}
+static vec_t QuatNormalize2( const quat_t v, quat_t out) {
+	float	length, ilength;
+
+	length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2] + v[3]*v[3];
+
+	if (length) {
+		/* writing it this way allows gcc to recognize that rsqrt can be used */
+		ilength = 1/(float)sqrt (length);
+		/* sqrt(length) = length * (1 / sqrt(length)) */
+		length *= ilength;
+		out[0] = v[0]*ilength;
+		out[1] = v[1]*ilength;
+		out[2] = v[2]*ilength;
+		out[3] = v[3]*ilength;
+	} else {
+		out[0] = out[1] = out[2] = out[3] = 0;
+	}
+
+	return length;
+}
 
 /*
 =================
@@ -139,7 +178,7 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 	unsigned short		*framedata;
 	char			*str;
 	int			i, j, k;
-	float			jointInvMats[IQM_MAX_JOINTS * 12] = {0.0f};
+	iqmTransform_t		*transform;
 	float			*mat, *matInv;
 	size_t			size, joint_names;
 	byte			*dataPtr;
@@ -562,10 +601,11 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 	if( header->num_joints ) {
 		size += joint_names;								// joint names
 		size += header->num_joints * sizeof(int);			// joint parents
-		size += header->num_joints * 12 * sizeof( float );	// joint mats
+		size += header->num_joints * 12 * sizeof(float);	// bind joint matricies
+		size += header->num_joints * 12 * sizeof(float);	// inverse bind joint matricies
 	}
 	if( header->num_poses ) {
-		size += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
+		size += header->num_poses * header->num_frames * sizeof(iqmTransform_t); // pose transforms
 	}
 	if( header->ofs_bounds ) {
 		size += header->num_frames * 6 * sizeof(float);		// model bounds
@@ -636,12 +676,15 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 		iqmData->jointParents = (int*)dataPtr;
 		dataPtr += header->num_joints * sizeof(int);		// joint parents
 
-		iqmData->jointMats = (float*)dataPtr;
+		iqmData->bindJoints = (float*)dataPtr;
-		dataPtr += header->num_joints * 12 * sizeof( float ); // joint mats
+		dataPtr += header->num_joints * 12 * sizeof(float);		// bind joint matricies
+
+		iqmData->invBindJoints = (float*)dataPtr;
+		dataPtr += header->num_joints * 12 * sizeof(float);		// inverse bind joint matricies
 	}
 	if( header->num_poses ) {
-		iqmData->poseMats = (float*)dataPtr;
+		iqmData->poses = (iqmTransform_t*)dataPtr;
-		dataPtr += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
+		dataPtr += header->num_poses * header->num_frames * sizeof(iqmTransform_t); // pose transforms
 	}
 	if( header->ofs_bounds ) {
 		iqmData->bounds = (float*)dataPtr;
@@ -807,22 +850,23 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 			iqmData->jointParents[i] = joint->parent;
 		}
 
-		// calculate joint matrices and their inverses
+		// calculate bind joint matrices and their inverses
-		// joint inverses are needed only until the pose matrices are calculated
+		mat = iqmData->bindJoints;
-		mat = iqmData->jointMats;
+		matInv = iqmData->invBindJoints;
-		matInv = jointInvMats;
 		joint = (iqmJoint_t *)((byte *)header + header->ofs_joints);
 		for( i = 0; i < header->num_joints; i++, joint++ ) {
 			float baseFrame[12], invBaseFrame[12];
 
+			QuatNormalize2( joint->rotate, joint->rotate );
+
 			JointToMatrix( joint->rotate, joint->scale, joint->translate, baseFrame );
 			Matrix34Invert( baseFrame, invBaseFrame );
 
 			if ( joint->parent >= 0 )
 			{
-				Matrix34Multiply( iqmData->jointMats + 12 * joint->parent, baseFrame, mat );
+				Matrix34Multiply( iqmData->bindJoints + 12 * joint->parent, baseFrame, mat );
 				mat += 12;
-				Matrix34Multiply( invBaseFrame, jointInvMats + 12 * joint->parent, matInv );
+				Matrix34Multiply( invBaseFrame, iqmData->invBindJoints + 12 * joint->parent, matInv );
 				matInv += 12;
 			}
 			else
@@ -837,16 +881,15 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 
 	if( header->num_poses )
 	{
-		// calculate pose matrices
+		// calculate pose transforms
+		transform = iqmData->poses;
 		framedata = (unsigned short *)((byte *)header + header->ofs_frames);
-		mat = iqmData->poseMats;
 		for( i = 0; i < header->num_frames; i++ ) {
 			pose = (iqmPose_t *)((byte *)header + header->ofs_poses);
-			for( j = 0; j < header->num_poses; j++, pose++ ) {
+			for( j = 0; j < header->num_poses; j++, pose++, transform++ ) {
 				vec3_t	translate;
-				vec4_t	rotate;
+				quat_t	rotate;
 				vec3_t	scale;
-				float	mat1[12], mat2[12];
 
 				translate[0] = pose->channeloffset[0];
 				if( pose->mask & 0x001)
@@ -881,18 +924,9 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
 				if( pose->mask & 0x200)
 					scale[2] += *framedata++ * pose->channelscale[9];
 
-				// construct transformation matrix
+				VectorCopy( translate, transform->translate );
-				JointToMatrix( rotate, scale, translate, mat1 );
+				QuatNormalize2( rotate, transform->rotate );
-
+				VectorCopy( scale, transform->scale );
-				if( pose->parent >= 0 ) {
-					Matrix34Multiply( iqmData->jointMats + 12 * pose->parent,
-							  mat1, mat2 );
-				} else {
-					Com_Memcpy( mat2, mat1, sizeof(mat1) );
-				}
-
-				Matrix34Multiply( mat2, jointInvMats + 12 * j, mat );
-				mat += 12;
 			}
 		}
 	}
@@ -1306,37 +1340,59 @@ void R_AddIQMSurfaces( trRefEntity_t *ent ) {
 
 
 static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
-			      float backlerp, float *mat ) {
+			      float backlerp, float *poseMats ) {
-	float	*mat1, *mat2;
+	iqmTransform_t relativeJoints[IQM_MAX_JOINTS];
-	int	*joint = data->jointParents;
+	iqmTransform_t *relativeJoint;
-	int	i;
+	const iqmTransform_t *pose;
+	const iqmTransform_t *oldpose;
+	const int *jointParent;
+	const float *invBindMat;
+	float *poseMat, lerp;
+	int i;
 
+	relativeJoint = relativeJoints;
+
+	// copy or lerp animation frame pose
 	if ( oldframe == frame ) {
-		mat1 = data->poseMats + 12 * data->num_poses * frame;
+		pose = &data->poses[frame * data->num_poses];
-		for( i = 0; i < data->num_poses; i++, joint++ ) {
+		for ( i = 0; i < data->num_poses; i++, pose++, relativeJoint++ ) {
-			if( *joint >= 0 ) {
+			VectorCopy( pose->translate, relativeJoint->translate );
-				Matrix34Multiply( mat + 12 * *joint,
+			QuatCopy( pose->rotate, relativeJoint->rotate );
-						  mat1 + 12*i, mat + 12*i );
+			VectorCopy( pose->scale, relativeJoint->scale );
-			} else {
-				Com_Memcpy( mat + 12*i, mat1 + 12*i, 12 * sizeof(float) );
-			}
 		}
-	} else  {
+	} else {
-		mat1 = data->poseMats + 12 * data->num_poses * frame;
+		lerp = 1.0f - backlerp;
-		mat2 = data->poseMats + 12 * data->num_poses * oldframe;
+		pose = &data->poses[frame * data->num_poses];
+		oldpose = &data->poses[oldframe * data->num_poses];
+		for ( i = 0; i < data->num_poses; i++, oldpose++, pose++, relativeJoint++ ) {
+			relativeJoint->translate[0] = oldpose->translate[0] * backlerp + pose->translate[0] * lerp;
+			relativeJoint->translate[1] = oldpose->translate[1] * backlerp + pose->translate[1] * lerp;
+			relativeJoint->translate[2] = oldpose->translate[2] * backlerp + pose->translate[2] * lerp;
 
-		for( i = 0; i < data->num_poses; i++, joint++ ) {
+			relativeJoint->scale[0] = oldpose->scale[0] * backlerp + pose->scale[0] * lerp;
-			if( *joint >= 0 ) {
+			relativeJoint->scale[1] = oldpose->scale[1] * backlerp + pose->scale[1] * lerp;
-				float tmpMat[12];
+			relativeJoint->scale[2] = oldpose->scale[2] * backlerp + pose->scale[2] * lerp;
-				InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
-						   backlerp, tmpMat );
-				Matrix34Multiply( mat + 12 * *joint,
-						  tmpMat, mat + 12*i );
 
-			} else {
+			QuatSlerp( oldpose->rotate, pose->rotate, lerp, relativeJoint->rotate );
-				InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
+		}
-						   backlerp, mat + 12*i );
+	}
-			}
+
+	// multiply by inverse of bind pose and parent 'pose mat' (bind pose transform matrix)
+	relativeJoint = relativeJoints;
+	jointParent = data->jointParents;
+	invBindMat = data->invBindJoints;
+	poseMat = poseMats;
+	for ( i = 0; i < data->num_poses; i++, relativeJoint++, jointParent++, invBindMat += 12, poseMat += 12 ) {
+		float mat1[12], mat2[12];
+
+		JointToMatrix( relativeJoint->rotate, relativeJoint->scale, relativeJoint->translate, mat1 );
+
+		if ( *jointParent >= 0 ) {
+			Matrix34Multiply( &data->bindJoints[(*jointParent)*12], mat1, mat2 );
+			Matrix34Multiply( mat2, invBindMat, mat1 );
+			Matrix34Multiply( &poseMats[(*jointParent)*12], mat1, poseMat );
+		} else {
+			Matrix34Multiply( mat1, invBindMat, poseMat );
 		}
 	}
 }
@@ -1347,7 +1403,7 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
 	int	i;
 
 	if ( data->num_poses == 0 ) {
-		Com_Memcpy( mat, data->jointMats, data->num_joints * 12 * sizeof(float) );
+		Com_Memcpy( mat, data->bindJoints, data->num_joints * 12 * sizeof(float) );
 		return;
 	}
 
@@ -1359,7 +1415,7 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
 
 		Com_Memcpy(outmat, mat1, sizeof(outmat));
 
-		Matrix34Multiply( outmat, data->jointMats + 12*i, mat1 );
+		Matrix34Multiply( outmat, data->bindJoints + 12*i, mat1 );
 	}
 }
 
@@ -1428,19 +1484,20 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
 			float *nrmMat = &influenceNrmMat[9*i];
 			int	j;
 			float	blendWeights[4];
-			int		numWeights;
 
-			for ( numWeights = 0; numWeights < 4; numWeights++ ) {
+			if ( data->blendWeightsType == IQM_FLOAT ) {
-				if ( data->blendWeightsType == IQM_FLOAT )
+				blendWeights[0] = data->influenceBlendWeights.f[4*influence + 0];
-					blendWeights[numWeights] = data->influenceBlendWeights.f[4*influence + numWeights];
+				blendWeights[1] = data->influenceBlendWeights.f[4*influence + 1];
-				else
+				blendWeights[2] = data->influenceBlendWeights.f[4*influence + 2];
-					blendWeights[numWeights] = (float)data->influenceBlendWeights.b[4*influence + numWeights] / 255.0f;
+				blendWeights[3] = data->influenceBlendWeights.f[4*influence + 3];
-
+			} else {
-				if ( blendWeights[numWeights] <= 0.0f )
+				blendWeights[0] = (float)data->influenceBlendWeights.b[4*influence + 0] / 255.0f;
-					break;
+				blendWeights[1] = (float)data->influenceBlendWeights.b[4*influence + 1] / 255.0f;
+				blendWeights[2] = (float)data->influenceBlendWeights.b[4*influence + 2] / 255.0f;
+				blendWeights[3] = (float)data->influenceBlendWeights.b[4*influence + 3] / 255.0f;
 			}
 
-			if ( numWeights == 0 ) {
+			if ( blendWeights[0] <= 0.0f ) {
 				// no blend joint, use identity matrix.
 				vtxMat[0] = identityMatrix[0];
 				vtxMat[1] = identityMatrix[1];
@@ -1470,7 +1527,11 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
 				vtxMat[10] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 10];
 				vtxMat[11] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 11];
 
-				for( j = 1; j < numWeights; j++ ) {
+				for( j = 1; j < 3; j++ ) {
+					if ( blendWeights[j] <= 0.0f ) {
+						break;
+					}
+
 					vtxMat[0] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 0];
 					vtxMat[1] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 1];
 					vtxMat[2] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 2];

engine/code/ui/ui_main.c

@@ -3086,6 +3086,7 @@ static void UI_Update(const char *name) {
 				trap_Cvar_SetValue( "r_stencilbits", 8 );
 				trap_Cvar_SetValue( "r_picmip", 0 );
 				trap_Cvar_SetValue( "r_mode", 4 );
+				trap_Cvar_Set( "ui_videomode", "800x600" );
 				trap_Cvar_SetValue( "r_texturebits", 32 );
 				trap_Cvar_SetValue( "r_fastSky", 0 );
 				trap_Cvar_SetValue( "r_inGameVideo", 1 );
@@ -3103,6 +3104,7 @@ static void UI_Update(const char *name) {
 				trap_Cvar_Reset( "r_stencilbits" );
 				trap_Cvar_SetValue( "r_picmip", 1 );
 				trap_Cvar_SetValue( "r_mode", 3 );
+				trap_Cvar_Set( "ui_videomode", "640x480" );
 				trap_Cvar_SetValue( "r_texturebits", 0 );
 				trap_Cvar_SetValue( "r_fastSky", 0 );
 				trap_Cvar_SetValue( "r_inGameVideo", 1 );
@@ -3120,6 +3122,7 @@ static void UI_Update(const char *name) {
 				trap_Cvar_Reset( "r_stencilbits" );
 				trap_Cvar_SetValue( "r_picmip", 1 );
 				trap_Cvar_SetValue( "r_mode", 3 );
+				trap_Cvar_Set( "ui_videomode", "640x480" );
 				trap_Cvar_SetValue( "r_texturebits", 0 );
 				trap_Cvar_SetValue( "cg_shadows", 0 );
 				trap_Cvar_SetValue( "r_fastSky", 1 );
@@ -3136,6 +3139,7 @@ static void UI_Update(const char *name) {
 				trap_Cvar_SetValue( "r_depthbits", 16 );
 				trap_Cvar_SetValue( "r_stencilbits", 0 );
 				trap_Cvar_SetValue( "r_mode", 3 );
+				trap_Cvar_Set( "ui_videomode", "640x480" );
 				trap_Cvar_SetValue( "r_picmip", 2 );
 				trap_Cvar_SetValue( "r_texturebits", 16 );
 				trap_Cvar_SetValue( "cg_shadows", 0 );
@@ -5079,6 +5083,8 @@ void _UI_Init( qboolean inGameLoad ) {
 	// cache redundant calulations
 	trap_GetGlconfig( &uiInfo.uiDC.glconfig );
 
+	trap_Cvar_Set("ui_videomode", va( "%dx%d", uiInfo.uiDC.glconfig.vidWidth, uiInfo.uiDC.glconfig.vidHeight ) );
+
 	// for 640x480 virtualized screen
 	uiInfo.uiDC.yscale = uiInfo.uiDC.glconfig.vidHeight * (1.0/480.0);
 	uiInfo.uiDC.xscale = uiInfo.uiDC.glconfig.vidWidth * (1.0/640.0);
@@ -5871,6 +5877,7 @@ static cvarTable_t		cvarTable[] = {
 	{ &ui_realCaptureLimit, "capturelimit", "8", CVAR_SERVERINFO | CVAR_ARCHIVE | CVAR_NORESTART},
 	{ &ui_serverStatusTimeOut, "ui_serverStatusTimeOut", "7000", CVAR_ARCHIVE},
 
+	{ NULL, "ui_videomode", "", CVAR_ROM },
 	{ NULL, "g_localTeamPref", "", 0 },
 };
 

engine/code/ui/ui_shared.c

@@ -2055,6 +2055,26 @@ qboolean Item_Multi_HandleKey(itemDef_t *item, int key) {
 				} else if ( current >= max ) {
 					current = 0;
 				}
+
+				if (multiPtr->videoMode) {
+					if (multiPtr->cvarValue[current] != -1) {
+						DC->setCVar("r_mode", va("%i", (int) multiPtr->cvarValue[current] ));
+					} else {
+						int w, h;
+						char *x;
+						char str[8];
+
+						x = strchr( multiPtr->cvarStr[current], 'x' ) + 1;
+						Q_strncpyz( str, multiPtr->cvarStr[current], MIN( x-multiPtr->cvarStr[current], sizeof( str ) ) );
+						w = atoi( str );
+						h = atoi( x );
+
+						DC->setCVar("r_mode", "-1");
+						DC->setCVar("r_customwidth", va("%i", w));
+						DC->setCVar("r_customheight", va("%i", h));
+					}
+				}
+
 				if (multiPtr->strDef) {
 					DC->setCVar(item->cvar, multiPtr->cvarStr[current]);
 				} else {
@@ -5003,6 +5023,7 @@ qboolean ItemParse_cvarStrList( itemDef_t *item, int handle ) {
 	multiPtr = (multiDef_t*)item->typeData;
 	multiPtr->count = 0;
 	multiPtr->strDef = qtrue;
+	multiPtr->videoMode = qfalse;
 
 	if (!trap_PC_ReadToken(handle, &token))
 		return qfalse;
@@ -5051,6 +5072,7 @@ qboolean ItemParse_cvarFloatList( itemDef_t *item, int handle ) {
 	multiPtr = (multiDef_t*)item->typeData;
 	multiPtr->count = 0;
 	multiPtr->strDef = qfalse;
+	multiPtr->videoMode = qfalse;
 
 	if (!trap_PC_ReadToken(handle, &token))
 		return qfalse;
@@ -5227,6 +5249,61 @@ void Item_SetupKeywordHash(void) {
 	}
 }
 
+static const char *builtinResolutions[ ] =
+{
+	"320x240",
+	"400x300",
+	"512x384",
+	"640x480",
+	"800x600",
+	"960x720",
+	"1024x768",
+	"1152x864",
+	"1280x1024",
+	"1600x1200",
+	"2048x1536",
+	"856x480",
+	NULL
+};
+
+static const char *knownRatios[ ][2] =
+{
+	{ "1.25:1", "5:4"   },
+	{ "1.33:1", "4:3"   },
+	{ "1.50:1", "3:2"   },
+	{ "1.56:1", "14:9"  },
+	{ "1.60:1", "16:10" },
+	{ "1.67:1", "5:3"   },
+	{ "1.78:1", "16:9"  },
+	{ NULL    , NULL    }
+};
+
+/*
+===============
+UI_ResolutionToAspect
+===============
+*/
+static void UI_ResolutionToAspect( const char *resolution, char *aspect, size_t aspectLength ) {
+	int i, w, h;
+	char *x;
+	char str[8];
+
+	// calculate resolution's aspect ratio
+	x = strchr( resolution, 'x' ) + 1;
+	Q_strncpyz( str, resolution, MIN( x-resolution, sizeof( str ) ) );
+	w = atoi( str );
+	h = atoi( x );
+	Com_sprintf( aspect, aspectLength, "%.2f:1", (float)w / (float)h );
+
+	// rename common ratios ("1.33:1" -> "4:3")
+	for( i = 0; knownRatios[i][0]; i++ ) {
+		if( !Q_stricmp( aspect, knownRatios[i][0] ) ) {
+			Q_strncpyz( aspect, knownRatios[i][1], aspectLength );
+			break;
+		}
+	}
+}
+
 /*
 ===============
 Item_ApplyHacks
@@ -5261,6 +5338,89 @@ static void Item_ApplyHacks( itemDef_t *item ) {
 		}
 	}
 
+	// Replace mode list and use a temporary ui_videomode cvar for handling custom modes
+	if ( item->type == ITEM_TYPE_MULTI && item->cvar && !Q_stricmp( item->cvar, "r_mode" ) ) {
+		multiDef_t *multiPtr = (multiDef_t*)item->typeData;
+		int i, oldCount;
+		char resbuf[MAX_STRING_CHARS];
+		char modeName[32], aspect[8];
+
+		item->cvar = "ui_videomode";
+		multiPtr->strDef = qtrue;
+		multiPtr->videoMode = qtrue;
+
+		oldCount = multiPtr->count;
+		multiPtr->count = 0;
+
+		DC->getCVarString( "r_availableModes", resbuf, sizeof( resbuf ) );
+
+		if ( *resbuf ) {
+			char *s = resbuf, *mode;
+
+			while ( s && multiPtr->count < MAX_MULTI_CVARS ) {
+				mode = s;
+
+				s = strchr(s, ' ');
+				if( s )
+					*s++ = '\0';
+
+				UI_ResolutionToAspect( mode, aspect, sizeof( aspect ) );
+				Com_sprintf( modeName, sizeof( modeName ), "%s (%s)", mode, aspect );
+
+				multiPtr->cvarList[multiPtr->count] = String_Alloc( modeName );
+
+				for ( i = 0; builtinResolutions[i]; i++ ) {
+					if( !Q_stricmp( builtinResolutions[i], mode ) ) {
+						multiPtr->cvarStr[multiPtr->count] = builtinResolutions[i];
+						multiPtr->cvarValue[multiPtr->count] = i;
+						break;
+					}
+				}
+
+				if ( builtinResolutions[i] == NULL ) {
+					multiPtr->cvarStr[multiPtr->count] = String_Alloc( mode );
+					multiPtr->cvarValue[multiPtr->count] = -1;
+				}
+
+				multiPtr->count++;
+			}
+		} else {
+			for ( i = 0; builtinResolutions[i] && multiPtr->count < MAX_MULTI_CVARS; i++ ) {
+				UI_ResolutionToAspect( builtinResolutions[i], aspect, sizeof( aspect ) );
+				Com_sprintf( modeName, sizeof( modeName ), "%s (%s)", builtinResolutions[i], aspect );
+
+				multiPtr->cvarList[multiPtr->count] = String_Alloc( modeName );
+				multiPtr->cvarStr[multiPtr->count] = builtinResolutions[i];
+				multiPtr->cvarValue[multiPtr->count] = i;
+				multiPtr->count++;
+			}
+		}
+
+		// Add custom resolution if not in mode list
+		if ( multiPtr->count < MAX_MULTI_CVARS ) {
+			char currentResolution[20];
+
+			Com_sprintf( currentResolution, sizeof ( currentResolution ), "%dx%d", DC->glconfig.vidWidth, DC->glconfig.vidHeight );
+			for ( i = 0; i < multiPtr->count; i++ ) {
+				if ( !Q_stricmp( multiPtr->cvarStr[i], currentResolution ) ) {
+					break;
+				}
+			}
+
+			if ( i == multiPtr->count ) {
+				UI_ResolutionToAspect( currentResolution, aspect, sizeof( aspect ) );
+				Com_sprintf( modeName, sizeof( modeName ), "%s (%s)", currentResolution, aspect );
+
+				multiPtr->cvarList[multiPtr->count] = String_Alloc( modeName );
+				multiPtr->cvarStr[multiPtr->count] = String_Alloc( currentResolution );
+				multiPtr->cvarValue[multiPtr->count] = -1;
+				multiPtr->count++;
+			}
+		}
+
+		Com_Printf( "Found video mode list with %d modes, replaced list with %d modes\n", oldCount, multiPtr->count );
+	}
+
 }
 
 /*

engine/code/ui/ui_shared.h

@@ -203,6 +203,7 @@ typedef struct multiDef_s {
 	float cvarValue[MAX_MULTI_CVARS];
 	int count;
 	qboolean strDef;
+	qboolean videoMode;
 } multiDef_t;
 
 typedef struct modelDef_s {

engine/docs/opengl2-readme.md

@@ -184,6 +184,11 @@ Cvars for advanced material usage:
                                      1 - Use parallax occlusion mapping.
                                      2 - Use relief mapping. (slower)
 
+*  `r_parallaxMapShadows`           - Enable self-shadowing on parallax map
+                                   supported materials.
+                                     0 - No. (default)
+                                     1 - Yes.
+
 *  `r_baseSpecular`                 - Set the specular reflectance of materials
                                    which don't include a specular map or
                                    use the specularReflectance keyword.