[Bf-blender-cvs] [8c712ea] master: GLSL: specular transparency support for Blender internal materials
Dontsov Valentin
noreply at git.blender.org
Sun Nov 9 15:36:49 CET 2014
Commit: 8c712eaa297162669fc0be849da115dd8db400d5
Author: Dontsov Valentin
Date: Sun Nov 9 15:22:44 2014 +0100
Branches: master
https://developer.blender.org/rB8c712eaa297162669fc0be849da115dd8db400d5
GLSL: specular transparency support for Blender internal materials
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D781
===================================================================
M source/blender/gpu/GPU_material.h
M source/blender/gpu/intern/gpu_material.c
M source/blender/gpu/shaders/gpu_shader_material.glsl
M source/blender/nodes/shader/nodes/node_shader_material.c
===================================================================
diff --git a/source/blender/gpu/GPU_material.h b/source/blender/gpu/GPU_material.h
index a111401..fab9c28 100644
--- a/source/blender/gpu/GPU_material.h
+++ b/source/blender/gpu/GPU_material.h
@@ -159,6 +159,7 @@ typedef struct GPUShadeInput {
GPUNodeLink *rgb, *specrgb, *vn, *view, *vcol, *ref;
GPUNodeLink *alpha, *refl, *spec, *emit, *har, *amb;
+ GPUNodeLink *spectra;
} GPUShadeInput;
typedef struct GPUShadeResult {
diff --git a/source/blender/gpu/intern/gpu_material.c b/source/blender/gpu/intern/gpu_material.c
index 32d7e04..fa22783 100644
--- a/source/blender/gpu/intern/gpu_material.c
+++ b/source/blender/gpu/intern/gpu_material.c
@@ -1426,6 +1426,7 @@ void GPU_shadeinput_set(GPUMaterial *mat, Material *ma, GPUShadeInput *shi)
GPU_link(mat, "set_value", GPU_uniform(&ma->emit), &shi->emit);
GPU_link(mat, "set_value", GPU_uniform(&hard), &shi->har);
GPU_link(mat, "set_value", GPU_uniform(&ma->amb), &shi->amb);
+ GPU_link(mat, "set_value", GPU_uniform(&ma->spectra), &shi->spectra);
GPU_link(mat, "shade_view", GPU_builtin(GPU_VIEW_POSITION), &shi->view);
GPU_link(mat, "vcol_attribute", GPU_attribute(CD_MCOL, ""), &shi->vcol);
if (GPU_material_do_color_management(mat))
@@ -1497,6 +1498,12 @@ void GPU_shaderesult_set(GPUShadeInput *shi, GPUShadeResult *shr)
}
}
+ if (ma->mode & MA_TRANSP && (ma->mode & (MA_ZTRANSP|MA_RAYTRANSP))) {
+ if (GPU_link_changed(shi->spectra) || ma->spectra != 0.0f)
+ GPU_link(mat, "alpha_spec_correction", shr->spec, shi->spectra,
+ shi->alpha, &shr->alpha);
+ }
+
if (ma->mode & MA_RAMP_COL) ramp_diffuse_result(shi, &shr->combined);
if (ma->mode & MA_RAMP_SPEC) ramp_spec_result(shi, &shr->spec);
diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index d5bc65e..a737741 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -1935,6 +1935,17 @@ void shade_add_spec(float t, vec3 lampcol, vec3 speccol, out vec3 outcol)
outcol = t*lampcol*speccol;
}
+void alpha_spec_correction(vec3 spec, float spectra, float alpha, out float outalpha)
+{
+ if (spectra > 0.0) {
+ float t = clamp(max(max(spec.r, spec.g), spec.b) * spectra, 0.0, 1.0);
+ outalpha = (1.0 - t) * alpha + t;
+ }
+ else {
+ outalpha = alpha;
+ }
+}
+
void shade_add(vec4 col1, vec4 col2, out vec4 outcol)
{
outcol = col1 + col2;
diff --git a/source/blender/nodes/shader/nodes/node_shader_material.c b/source/blender/nodes/shader/nodes/node_shader_material.c
index 79d6649..b7e10c7 100644
--- a/source/blender/nodes/shader/nodes/node_shader_material.c
+++ b/source/blender/nodes/shader/nodes/node_shader_material.c
@@ -267,6 +267,8 @@ static int gpu_shader_material(GPUMaterial *mat, bNode *node, bNodeExecData *UNU
shi.amb = gpu_get_input_link(&in[MAT_IN_AMB]);
if (hasinput[MAT_IN_EMIT])
shi.emit = gpu_get_input_link(&in[MAT_IN_EMIT]);
+ if (hasinput[MAT_IN_SPECTRA])
+ shi.spectra = gpu_get_input_link(&in[MAT_IN_SPECTRA]);
if (hasinput[MAT_IN_ALPHA])
shi.alpha = gpu_get_input_link(&in[MAT_IN_ALPHA]);
}
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