From bdbae11650d3689412969c4c54fa2e8b6720af87 Mon Sep 17 00:00:00 2001 From: Richard Allen Date: Mon, 7 Sep 2020 21:27:39 +0000 Subject: [PATCH] Update Renderer to latest ioq3 version. --- code/renderergl2/glsl/lightall_fp.glsl | 47 ++++- code/renderergl2/tr_glsl.c | 3 + code/renderergl2/tr_init.c | 10 + code/renderergl2/tr_local.h | 12 +- code/renderergl2/tr_model_iqm.c | 244 ++++++++++++++++--------- 5 files changed, 221 insertions(+), 95 deletions(-) diff --git a/code/renderergl2/glsl/lightall_fp.glsl b/code/renderergl2/glsl/lightall_fp.glsl index d77cd7c7..26f9a995 100644 --- a/code/renderergl2/glsl/lightall_fp.glsl +++ b/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) @@ -193,7 +222,7 @@ 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 @@ -223,6 +252,7 @@ vec4 hitCube(vec3 ray, vec3 pos, vec3 invSize, float lod, samplerCube tex) //return vec4(textureCubeLod(tex, tc, lod).rgb * fade, fade); return vec4(textureCubeLod(tex, tc, lod).rgb, 1.0); } +#endif void main() { @@ -252,7 +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; @@ -319,6 +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); @@ -457,6 +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 diff --git a/code/renderergl2/tr_glsl.c b/code/renderergl2/tr_glsl.c index 4ed49370..0d95d0df 100644 --- a/code/renderergl2/tr_glsl.c +++ b/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"); } } diff --git a/code/renderergl2/tr_init.c b/code/renderergl2/tr_init.c index ce48925d..275d621e 100644 --- a/code/renderergl2/tr_init.c +++ b/code/renderergl2/tr_init.c @@ -30,6 +30,7 @@ glRefConfig_t glRefConfig; qboolean textureFilterAnisotropic = qfalse; int maxAnisotropy = 0; float displayAspect = 0.0f; +qboolean haveClampToEdge = qfalse; glstate_t glState; @@ -131,6 +132,7 @@ 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 +286,12 @@ 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 +1243,7 @@ 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); @@ -1544,6 +1553,7 @@ void RE_Shutdown( qboolean destroyWindow ) { textureFilterAnisotropic = qfalse; maxAnisotropy = 0; displayAspect = 0.0f; + haveClampToEdge = qfalse; Com_Memset( &glState, 0, sizeof( glState ) ); } diff --git a/code/renderergl2/tr_local.h b/code/renderergl2/tr_local.h index ea6d70fe..39f6f7a2 100644 --- a/code/renderergl2/tr_local.h +++ b/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 *poseMats; + float *bindJoints; // [num_joints * 12] + 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; diff --git a/code/renderergl2/tr_model_iqm.c b/code/renderergl2/tr_model_iqm.c index 1a6e1e5a..fc345a32 100644 --- a/code/renderergl2/tr_model_iqm.c +++ b/code/renderergl2/tr_model_iqm.c @@ -2,6 +2,7 @@ =========================================================================== Copyright (C) 2011 Thilo Schulz Copyright (C) 2011 Matthias Bentrup +Copyright (C) 2011-2019 Zack Middleton 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 ) { - 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, +static void JointToMatrix( const quat_t rot, const vec3_t scale, const 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 +104,62 @@ 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] = 0; + out[3] = -1; + } + + return length; +} /* ================= @@ -139,7 +179,7 @@ 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 +602,11 @@ 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 +677,15 @@ 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; - dataPtr += header->num_joints * 12 * sizeof( float ); // joint mats + iqmData->bindJoints = (float*)dataPtr; + 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; - dataPtr += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats + iqmData->poses = (iqmTransform_t*)dataPtr; + dataPtr += header->num_poses * header->num_frames * sizeof(iqmTransform_t); // pose transforms } if( header->ofs_bounds ) { iqmData->bounds = (float*)dataPtr; @@ -807,22 +851,23 @@ 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 - // joint inverses are needed only until the pose matrices are calculated - mat = iqmData->jointMats; - matInv = jointInvMats; + // calculate bind joint matrices and their inverses + mat = iqmData->bindJoints; + matInv = iqmData->invBindJoints; 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 +882,15 @@ 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 +925,9 @@ 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 - JointToMatrix( rotate, scale, translate, mat1 ); - - 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; + VectorCopy( translate, transform->translate ); + QuatNormalize2( rotate, transform->rotate ); + VectorCopy( scale, transform->scale ); } } } @@ -1306,37 +1341,59 @@ void R_AddIQMSurfaces( trRefEntity_t *ent ) { static void ComputePoseMats( iqmData_t *data, int frame, int oldframe, - float backlerp, float *mat ) { - float *mat1, *mat2; - int *joint = data->jointParents; - int i; + float backlerp, float *poseMats ) { + iqmTransform_t relativeJoints[IQM_MAX_JOINTS]; + iqmTransform_t *relativeJoint; + 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; - for( i = 0; i < data->num_poses; i++, joint++ ) { - if( *joint >= 0 ) { - Matrix34Multiply( mat + 12 * *joint, - mat1 + 12*i, mat + 12*i ); - } else { - Com_Memcpy( mat + 12*i, mat1 + 12*i, 12 * sizeof(float) ); - } + pose = &data->poses[frame * data->num_poses]; + for ( i = 0; i < data->num_poses; i++, pose++, relativeJoint++ ) { + VectorCopy( pose->translate, relativeJoint->translate ); + QuatCopy( pose->rotate, relativeJoint->rotate ); + VectorCopy( pose->scale, relativeJoint->scale ); } - } else { - mat1 = data->poseMats + 12 * data->num_poses * frame; - mat2 = data->poseMats + 12 * data->num_poses * oldframe; - - for( i = 0; i < data->num_poses; i++, joint++ ) { - if( *joint >= 0 ) { - float tmpMat[12]; - InterpolateMatrix( mat1 + 12*i, mat2 + 12*i, - backlerp, tmpMat ); - Matrix34Multiply( mat + 12 * *joint, - tmpMat, mat + 12*i ); - - } else { - InterpolateMatrix( mat1 + 12*i, mat2 + 12*i, - backlerp, mat + 12*i ); - } + } else { + lerp = 1.0f - backlerp; + 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; + + relativeJoint->scale[0] = oldpose->scale[0] * backlerp + pose->scale[0] * lerp; + relativeJoint->scale[1] = oldpose->scale[1] * backlerp + pose->scale[1] * lerp; + relativeJoint->scale[2] = oldpose->scale[2] * backlerp + pose->scale[2] * lerp; + + QuatSlerp( oldpose->rotate, pose->rotate, lerp, relativeJoint->rotate ); + } + } + + // 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 +1404,7 @@ 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 +1416,7 @@ 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 +1485,20 @@ 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 ) - blendWeights[numWeights] = data->influenceBlendWeights.f[4*influence + numWeights]; - else - blendWeights[numWeights] = (float)data->influenceBlendWeights.b[4*influence + numWeights] / 255.0f; - - if ( blendWeights[numWeights] <= 0.0f ) - break; + if ( data->blendWeightsType == IQM_FLOAT ) { + blendWeights[0] = data->influenceBlendWeights.f[4*influence + 0]; + blendWeights[1] = data->influenceBlendWeights.f[4*influence + 1]; + blendWeights[2] = data->influenceBlendWeights.f[4*influence + 2]; + blendWeights[3] = data->influenceBlendWeights.f[4*influence + 3]; + } else { + blendWeights[0] = (float)data->influenceBlendWeights.b[4*influence + 0] / 255.0f; + 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 +1528,11 @@ 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];