static void ComputeTexMatrix( shaderStage_t *pStage, int bundleNum, float *outmatrix)
{
int tm;
float matrix[16], currentmatrix[16];
textureBundle_t *bundle = &pStage->bundle[bundleNum];
Matrix16Identity(outmatrix);
Matrix16Identity(currentmatrix);
for ( tm = 0; tm < bundle->numTexMods ; tm++ ) {
switch ( bundle->texMods[tm].type )
{
case TMOD_NONE:
tm = TR_MAX_TEXMODS; // break out of for loop
break;
case TMOD_TURBULENT:
RB_CalcTurbulentTexMatrix( &bundle->texMods[tm].wave,
matrix );
outmatrix[12] = matrix[12];
outmatrix[13] = matrix[13];
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_ENTITY_TRANSLATE:
RB_CalcScrollTexMatrix( backEnd.currentEntity->e.shaderTexCoord,
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_SCROLL:
RB_CalcScrollTexMatrix( bundle->texMods[tm].scroll,
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_SCALE:
RB_CalcScaleTexMatrix( bundle->texMods[tm].scale,
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_STRETCH:
RB_CalcStretchTexMatrix( &bundle->texMods[tm].wave,
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_TRANSFORM:
RB_CalcTransformTexMatrix( &bundle->texMods[tm],
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
case TMOD_ROTATE:
RB_CalcRotateTexMatrix( bundle->texMods[tm].rotateSpeed,
matrix );
Matrix16Multiply(matrix, currentmatrix, outmatrix);
Matrix16Copy(outmatrix, currentmatrix);
break;
default:
ri.Error( ERR_DROP, "ERROR: unknown texmod '%d' in shader '%s'", bundle->texMods[tm].type, tess.shader->name );
break;
}
}
}
void GL_SetModelviewMatrix(matrix_t matrix)
{
Matrix16Copy(matrix, glState.modelview);
Matrix16Multiply(glState.projection, glState.modelview, glState.modelviewProjection);
}
