mirror of https://github.com/ZDoom/raze-gles.git
Bump mapping (hardcoded to palette 100 for now, will do the defs glue later to make it more convenient to package the source for public releases).
TODO: use the inverse TBN on a world-space light vector instead of transforming every fragment interpolated normal into eye-space with the TBN * the view matrix. git-svn-id: https://svn.eduke32.com/eduke32@1244 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
plagman
parent
62d3116325
commit
f982323443
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@ -45,6 +45,7 @@ typedef enum {
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PR_BIT_HEADER, // must be first
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PR_BIT_ANIM_INTERPOLATION,
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PR_BIT_LIGHTING_PASS,
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PR_BIT_NORMAL_MAP,
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PR_BIT_DIFFUSE_MAP,
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PR_BIT_DIFFUSE_DETAIL_MAP,
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PR_BIT_DIFFUSE_MODULATION,
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@ -59,6 +60,8 @@ typedef struct s_prmaterial {
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GLfloat frameprogress;
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GLfloat* nextframedata;
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GLsizei nextframedatastride;
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// PR_BIT_NORMAL_MAP
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GLuint normalmap;
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// PR_BIT_DIFFUSE_MAP
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GLuint diffusemap;
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GLfloat diffusescale[2];
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@ -77,6 +80,11 @@ typedef struct s_prrograminfo {
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GLint attrib_nextFrameData;
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GLint attrib_nextFrameNormal;
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GLint uniform_frameProgress;
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// PR_BIT_NORMAL_MAP
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GLint uniform_normalMap;
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GLint attrib_T;
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GLint attrib_B;
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GLint attrib_N;
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// PR_BIT_DIFFUSE_MAP
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GLint uniform_diffuseMap;
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GLint uniform_diffuseScale;
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@ -176,19 +176,44 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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" result = vec4(0.0, 0.0, 0.0, 1.0);\n"
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"\n",
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},
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{
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1 << PR_BIT_NORMAL_MAP,
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// vert_def
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"attribute vec3 T;\n"
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"attribute vec3 B;\n"
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"attribute vec3 N;\n"
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"varying mat3 matTBN;\n"
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"\n",
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// vert_prog
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" //TBN = mat3(gl_NormalMatrix * T, gl_NormalMatrix * B, gl_NormalMatrix * N);\n"
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" matTBN = gl_NormalMatrix * mat3(T, B, N);\n"
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"\n"
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" gl_TexCoord[texCoord++] = gl_MultiTexCoord0;\n"
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" isNormalMapped = 1;\n"
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"\n",
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// frag_def
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"uniform sampler2D normalMap;\n"
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"varying mat3 matTBN;\n"
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"\n",
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// frag_prog
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" normalTexel = texture2D(normalMap, gl_TexCoord[texCoord++].st);\n"
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" isNormalMapped = 1;\n"
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" TBN = matTBN;\n"
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"\n",
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},
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{
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1 << PR_BIT_DIFFUSE_MAP,
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// vert_def
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"uniform vec2 diffuseScale;\n"
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"\n",
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// vert_prog
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" gl_TexCoord[0] = vec4(diffuseScale, 1.0, 1.0) * gl_MultiTexCoord0;\n"
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" gl_TexCoord[texCoord++] = vec4(diffuseScale, 1.0, 1.0) * gl_MultiTexCoord0;\n"
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"\n",
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// frag_def
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"uniform sampler2D diffuseMap;\n"
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"\n",
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// frag_prog
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" diffuseTexel = texture2D(diffuseMap, gl_TexCoord[0].st);\n"
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" diffuseTexel = texture2D(diffuseMap, gl_TexCoord[texCoord++].st);\n"
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" if (isLightingPass == 0)\n"
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" result *= diffuseTexel;\n"
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"\n",
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@ -199,13 +224,13 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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"uniform vec2 detailScale;\n"
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"\n",
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// vert_prog
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" gl_TexCoord[1] = vec4(detailScale, 1.0, 1.0) * gl_MultiTexCoord0;\n"
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" gl_TexCoord[texCoord++] = vec4(detailScale, 1.0, 1.0) * gl_MultiTexCoord0;\n"
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"\n",
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// frag_def
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"uniform sampler2D detailMap;\n"
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"\n",
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// frag_prog
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" result *= texture2D(detailMap, gl_TexCoord[1].st);\n"
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" result *= texture2D(detailMap, gl_TexCoord[texCoord++].st);\n"
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" result.rgb *= 2.0;\n"
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"\n",
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},
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@ -228,7 +253,7 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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// vert_def
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"",
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// vert_prog
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" gl_TexCoord[2] = gl_MultiTexCoord0;\n"
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" gl_TexCoord[texCoord++] = gl_MultiTexCoord0;\n"
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"\n",
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// frag_def
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"uniform sampler2D glowMap;\n"
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@ -236,7 +261,7 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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// frag_prog
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" vec4 glowTexel;\n"
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"\n"
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" glowTexel = texture2D(glowMap, gl_TexCoord[2].st);\n"
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" glowTexel = texture2D(glowMap, gl_TexCoord[texCoord++].st);\n"
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" result = vec4((result.rgb * (1.0 - glowTexel.a)) + (glowTexel.rgb * glowTexel.a), result.a);\n"
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"\n",
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},
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@ -246,19 +271,26 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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"varying vec3 vertexNormal;\n"
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"varying vec3 eyeVector;\n"
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"varying vec3 lightVector;\n"
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"varying vec3 tangentSpaceLightVector;\n"
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"\n",
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// vert_prog
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" vec3 vertexPos;\n"
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"\n"
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" vertexNormal = normalize(gl_NormalMatrix * curNormal);\n"
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" vertexPos = vec3(gl_ModelViewMatrix * curVertex);\n"
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" eyeVector = -vertexPos;\n"
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" lightVector = gl_LightSource[0].ambient.rgb - vertexPos;\n"
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"\n"
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" if (isNormalMapped == 1) {\n"
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" tangentSpaceLightVector = vec3(32376.0, -94.0, -32496.0) - vec3(curVertex);\n"
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" tangentSpaceLightVector = TBN * tangentSpaceLightVector;\n"
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" } else\n"
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" vertexNormal = normalize(gl_NormalMatrix * curNormal);\n"
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"\n",
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// frag_def
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"varying vec3 vertexNormal;\n"
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"varying vec3 eyeVector;\n"
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"varying vec3 lightVector;\n"
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"varying vec3 tangentSpaceLightVector;\n"
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"\n",
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// frag_prog
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" vec2 lightRange;\n"
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@ -284,7 +316,11 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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" (lightRange.y - lightRange.x);\n"
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"\n"
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" if (lightAttenuation > 0.0) {\n"
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" N = normalize(vertexNormal);\n"
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" if (isNormalMapped == 1) {\n"
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" N = 2.0 * (normalTexel.rgb - 0.5);\n"
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" N = normalize(TBN * N);\n"
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" } else\n"
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" N = normalize(vertexNormal);\n"
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" NdotL = dot(N, L);\n"
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"\n"
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" if (NdotL > 0.0) {\n"
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@ -306,8 +342,11 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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// vert_def
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"void main(void)\n"
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"{\n"
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" int texCoord = 0;\n"
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" vec4 curVertex = gl_Vertex;\n"
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" vec3 curNormal = gl_Normal;\n"
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" int isNormalMapped = 0;\n"
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" mat3 TBN;\n"
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"\n",
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// vert_prog
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" gl_Position = gl_ModelViewProjectionMatrix * curVertex;\n"
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@ -315,9 +354,13 @@ _prprogrambit prprogrambits[PR_BIT_COUNT] = {
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// frag_def
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"void main(void)\n"
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"{\n"
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" int texCoord = 0;\n"
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" vec4 result = vec4(1.0, 1.0, 1.0, 1.0);\n"
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" vec4 diffuseTexel = vec4(1.0, 1.0, 1.0, 1.0);\n"
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" vec4 normalTexel;\n"
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" int isLightingPass = 0;\n"
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" int isNormalMapped = 0;\n"
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" mat3 TBN;\n"
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"\n",
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// frag_prog
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" gl_FragColor = result;\n"
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@ -826,6 +869,9 @@ void polymer_resetlights(void)
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void polymer_addlight(_prlight light)
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{
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if (light.sector == -1)
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return;
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if (lightcount < PR_MAXLIGHTS)
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{
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prlights[lightcount] = light;
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@ -1240,6 +1286,13 @@ static void polymer_drawplane(int16_t sectnum, int16_t wallnum, _prplane
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{
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materialbits = polymer_bindmaterial(plane->material, plane->lights, plane->lightcount);
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if (materialbits & prprogrambits[PR_BIT_NORMAL_MAP].bit)
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{
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bglVertexAttrib3fvARB(prprograms[materialbits].attrib_T, plane->t);
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bglVertexAttrib3fvARB(prprograms[materialbits].attrib_B, plane->b);
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bglVertexAttrib3fvARB(prprograms[materialbits].attrib_N, plane->plane);
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}
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if (plane->vbo && (pr_vbos > 0))
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{
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OMGDRAWSHITVBO;
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@ -2114,9 +2167,12 @@ static void polymer_updatewall(int16_t wallnum)
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w->cap[7] += 1048576; // this number is the result of 1048574 + 2
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w->cap[10] += 1048576; // this one is arbitrary
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polymer_buffertoplane(w->bigportal, NULL, 4, w->wall.plane, w->wall.t, w->wall.b, w->wall.n);
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memcpy(w->over.plane, w->wall.plane, sizeof(w->wall.plane));
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memcpy(w->mask.plane, w->wall.plane, sizeof(w->wall.plane));
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if (w->underover & 1)
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polymer_buffertoplane(w->wall.buffer, NULL, 4, w->wall.plane, w->wall.t, w->wall.b, w->wall.n);
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if (w->underover & 2)
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polymer_buffertoplane(w->over.buffer, NULL, 4, w->over.plane, w->over.t, w->over.b, w->over.n);
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if (!((wal->nextsector == -1) || (wal->cstat & 32)))
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polymer_buffertoplane(w->mask.buffer, NULL, 4, w->mask.plane, w->mask.t, w->mask.b, w->mask.n);
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if ((pr_vbos > 0))
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{
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@ -2229,27 +2285,27 @@ static void polymer_buffertoplane(GLfloat* buffer, GLushort* indices, in
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b[1] = (vec1[3] * vec2[1] - vec2[3] * vec1[1]) * r;
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b[2] = (vec1[3] * vec2[2] - vec2[3] * vec1[2]) * r;
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// invert T, B and N
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r = 1.0f / ((t[0] * b[1] * plane[2] - t[2] * b[1] * plane[0]) +
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(b[0] * plane[1] * t[2] - b[2] * plane[1] * t[0]) +
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(plane[0] * t[1] * b[2] - plane[2] * t[1] * b[0]));
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polymer_crossproduct(b, plane, BxN);
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polymer_crossproduct(plane, t, NxT);
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polymer_crossproduct(t, b, TxB);
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// GLSL matrix constructors are in column-major order
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t[0] = BxN[0] * r;
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t[1] = -NxT[0] * r;
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t[2] = TxB[0] * r;
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b[0] = -BxN[1] * r;
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b[1] = NxT[1] * r;
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b[2] = -TxB[1] * r;
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n[0] = BxN[2] * r;
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n[1] = -NxT[2] * r;
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n[2] = TxB[2] * r;
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// // invert T, B and N
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// r = 1.0f / ((t[0] * b[1] * plane[2] - t[2] * b[1] * plane[0]) +
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// (b[0] * plane[1] * t[2] - b[2] * plane[1] * t[0]) +
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// (plane[0] * t[1] * b[2] - plane[2] * t[1] * b[0]));
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//
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// polymer_crossproduct(b, plane, BxN);
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// polymer_crossproduct(plane, t, NxT);
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// polymer_crossproduct(t, b, TxB);
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//
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// // GLSL matrix constructors are in column-major order
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// t[0] = BxN[0] * r;
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// t[1] = -NxT[0] * r;
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// t[2] = TxB[0] * r;
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//
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// b[0] = -BxN[1] * r;
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// b[1] = NxT[1] * r;
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// b[2] = -TxB[1] * r;
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//
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// n[0] = BxN[2] * r;
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// n[1] = -NxT[2] * r;
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// n[2] = TxB[2] * r;
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// normalize T, B and N
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norm = t[0] * t[0] + t[1] * t[1] + t[2] * t[2];
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@ -2873,6 +2929,8 @@ static void polymer_getscratchmaterial(_prmaterial* material)
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material->frameprogress = 0.0f;
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material->nextframedata = NULL;
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material->nextframedatastride = 0;
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// PR_BIT_NORMAL_MAP
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material->normalmap = 0;
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// PR_BIT_DIFFUSE_MAP
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material->diffusemap = 0;
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material->diffusescale[0] = material->diffusescale[1] = 1.0f;
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@ -2896,6 +2954,16 @@ static void polymer_getbuildmaterial(_prmaterial* material, int16_t tile
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polymer_getscratchmaterial(material);
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// PR_BIT_NORMAL_MAP
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if (hicfindsubst(tilenum, 100, 0))
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{
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glowpth = NULL;
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glowpth = gltexcache(tilenum, 100, 0);
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if (glowpth && glowpth->hicr && (glowpth->hicr->palnum == 100))
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material->normalmap = glowpth->glpic;
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}
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// PR_BIT_DIFFUSE_MAP
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if (!waloff[tilenum])
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loadtile(tilenum);
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@ -2979,6 +3047,10 @@ static int32_t polymer_bindmaterial(_prmaterial material, char* lights, int
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if (curlight && lightcount)
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programbits |= prprogrambits[PR_BIT_LIGHTING_PASS].bit;
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// PR_BIT_NORMAL_MAP
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if (material.normalmap)
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programbits |= prprogrambits[PR_BIT_NORMAL_MAP].bit;
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// PR_BIT_DIFFUSE_MAP
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if (material.diffusemap)
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programbits |= prprogrambits[PR_BIT_DIFFUSE_MAP].bit;
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@ -3032,6 +3104,17 @@ static int32_t polymer_bindmaterial(_prmaterial material, char* lights, int
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bglBlendFunc(GL_ONE, GL_ONE);
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}
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// PR_BIT_NORMAL_MAP
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if (programbits & prprogrambits[PR_BIT_NORMAL_MAP].bit)
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{
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bglActiveTextureARB(texunit + GL_TEXTURE0_ARB);
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bglBindTexture(GL_TEXTURE_2D, material.normalmap);
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bglUniform1iARB(prprograms[programbits].uniform_normalMap, texunit);
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texunit++;
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}
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// PR_BIT_DIFFUSE_MAP
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if (programbits & prprogrambits[PR_BIT_DIFFUSE_MAP].bit)
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{
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@ -3210,6 +3293,15 @@ static void polymer_compileprogram(int32_t programbits)
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prprograms[programbits].uniform_frameProgress = bglGetUniformLocationARB(program, "frameProgress");
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}
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// PR_BIT_NORMAL_MAP
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if (programbits & prprogrambits[PR_BIT_NORMAL_MAP].bit)
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{
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prprograms[programbits].uniform_normalMap = bglGetUniformLocationARB(program, "normalMap");
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prprograms[programbits].attrib_T = bglGetAttribLocationARB(program, "T");
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prprograms[programbits].attrib_B = bglGetAttribLocationARB(program, "B");
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prprograms[programbits].attrib_N = bglGetAttribLocationARB(program, "N");
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}
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// PR_BIT_DIFFUSE_MAP
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if (programbits & prprogrambits[PR_BIT_DIFFUSE_MAP].bit)
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{
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