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ShaderGenerator: fix updating color of combine stages with CS_constant

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This also changes the function of TextureStage::uses_color(), which no longer incorporate TextureStage::involves_color_scale()

Fixes: #177
This commit is contained in:
rdb 2017-10-15 17:06:59 +02:00
parent 51d948a7fa
commit 0db3d27247
4 changed files with 12 additions and 8 deletions
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2
panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx
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@ -4438,7 +4438,7 @@ set_texture_blend_mode(int i, const TextureStage *stage) {
set_texture_stage_state(i, D3DTSS_RESULTARG, D3DTA_CURRENT);
}
if (stage->uses_color()) {
if (stage->uses_color() || stage->involves_color_scale()) {
// Set up the constant color for this stage.
D3DCOLOR constant_color;

3
panda/src/gobj/textureStage.I
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@ -658,8 +658,7 @@ update_color_flags() {
_combine_alpha_source2 == CS_constant_color_scale)));
_uses_color =
(_involves_color_scale ||
_mode == M_blend ||
(_mode == M_blend ||
(_mode == M_combine &&
(_combine_rgb_source0 == CS_constant ||
_combine_rgb_source1 == CS_constant ||

14
panda/src/pgraphnodes/shaderGenerator.cxx
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@ -424,6 +424,11 @@ analyze_renderstate(ShaderKey &key, const RenderState *rs) {
info._stage = stage;
}
// Does this stage need a texcolor_# input?
if (stage->uses_color()) {
info._flags |= ShaderKey::TF_uses_color;
}
key._textures.push_back(info);
key._texture_flags |= info._flags;
}
@ -827,7 +832,7 @@ synthesize_shader(const RenderState *rs, const GeomVertexAnimationSpec &anim) {
text << "\t uniform float4x4 texmat_" << i << ",\n";
}
if (tex._mode == TextureStage::M_blend) {
if (tex._flags & ShaderKey::TF_uses_color) {
text << "\t uniform float4 texcolor_" << i << ",\n";
}
}
@ -1562,10 +1567,9 @@ combine_source_as_string(CPT(TextureStage) stage, short num, bool alpha, bool si
case TextureStage::CS_texture:
csource << "tex" << texindex;
break;
case TextureStage::CS_constant: {
LVecBase4 c = stage->get_color();
csource << "float4(" << c[0] << ", " << c[1] << ", " << c[2] << ", " << c[3] << ")";
break; }
case TextureStage::CS_constant:
csource << "texcolor_" << texindex;
break;
case TextureStage::CS_primary_color:
csource << "primary_color";
break;

1
panda/src/pgraphnodes/shaderGenerator.h
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@ -110,6 +110,7 @@ protected:
TF_map_height = 64,
TF_map_glow = 128,
TF_map_gloss = 256,
TF_uses_color = 512,
};
ColorAttrib::Type _color_type;