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Add instanced spheremap shader

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This commit is contained in:
Vincent Lejeune 2014-08-26 17:31:05 +02:00
parent 4b597b97b7
commit 0960f090dc
3 changed files with 57 additions and 2 deletions
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33
data/shaders/instanced_objectpass_spheremap.frag Normal file
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@ -0,0 +1,33 @@
// See http://www.ozone3d.net/tutorials/glsl_texturing_p04.php for ref
#ifndef GL_ARB_bindless_texture
uniform sampler2D tex;
#endif
#ifdef GL_ARB_bindless_texture
flat in sampler2D handle;
#endif
in vec3 nor;
out vec4 FragColor;
vec4 getPosFromUVDepth(vec3 uvDepth, mat4 InverseProjectionMatrix);
vec3 getLightFactor(float specMapValue);
void main() {
vec3 texc = gl_FragCoord.xyz / vec3(screen, 1.);
vec3 u = getPosFromUVDepth(texc, InverseProjectionMatrix).xyz;
vec3 r = reflect(u, nor);
float m = 2.0 * sqrt(r.x * r.x + r.y * r.y + (r.z + 1.0) * (r.z + 1.0));
r.y = - r.y;
#ifdef GL_ARB_bindless_texture
vec4 detail0 = texture(handle, r.xy / m + .5);
detail0.xyz = pow(detail0.xyz, vec3(2.2));
#else
vec4 detail0 = texture(tex, r.xy / m + .5);
#endif
vec3 LightFactor = getLightFactor(1.);
FragColor = vec4(detail0.xyz * LightFactor, 1.);
}

20
src/graphics/shaders.cpp
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@ -987,11 +987,27 @@ namespace MeshShader
SphereMapShader::SphereMapShader()
{
Program = LoadProgram(
GL_VERTEX_SHADER, file_manager->getAsset("shaders/object_pass.vert").c_str(),
GL_VERTEX_SHADER, file_manager->getAsset("shaders/utils/getworldmatrix.vert").c_str(),
GL_VERTEX_SHADER, file_manager->getAsset("shaders/instanced_object_pass.vert").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/utils/getLightFactor.frag").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/utils/getPosFromUVDepth.frag").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/instanced_objectpass_spheremap.frag").c_str());
AssignUniforms("ModelMatrix", "InverseModelMatrix");
GLuint uniform_ViewProjectionMatrixesUBO = glGetUniformBlockIndex(Program, "MatrixesData");
glUniformBlockBinding(Program, uniform_ViewProjectionMatrixesUBO, 0);
AssignSamplerNames(Program, 0, "DiffuseMap", 1, "SpecularMap", 2, "SSAO", 3, "tex");
}
InstancedSphereMapShader::InstancedSphereMapShader()
{
Program = LoadProgram(
GL_VERTEX_SHADER, file_manager->getAsset("shaders/in.vert").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/utils/getLightFactor.frag").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/utils/getPosFromUVDepth.frag").c_str(),
GL_FRAGMENT_SHADER, file_manager->getAsset("shaders/objectpass_spheremap.frag").c_str());
AssignUniforms("ModelMatrix", "InverseModelMatrix");
AssignUniforms();
GLuint uniform_ViewProjectionMatrixesUBO = glGetUniformBlockIndex(Program, "MatrixesData");
glUniformBlockBinding(Program, uniform_ViewProjectionMatrixesUBO, 0);

6
src/graphics/shaders.hpp
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@ -554,6 +554,12 @@ public:
SphereMapShader();
};
class InstancedSphereMapShader : public ShaderHelperSingleton<InstancedSphereMapShader>, public TextureRead<Nearest_Filtered, Nearest_Filtered, Bilinear_Filtered, Trilinear_Anisotropic_Filtered>
{
public:
InstancedSphereMapShader();
};
class SplattingShader : public ShaderHelperSingleton<SplattingShader, core::matrix4>, public TextureRead<Nearest_Filtered, Nearest_Filtered, Bilinear_Filtered, Trilinear_Anisotropic_Filtered, Trilinear_Anisotropic_Filtered, Trilinear_Anisotropic_Filtered, Trilinear_Anisotropic_Filtered, Trilinear_Anisotropic_Filtered>
{
public: