Page MenuHome
Differential D2043 Diff 6835 source/blender/gpu/shaders/gpu_shader_material.glsl

Changeset View

Standalone View

View Options

source/blender/gpu/shaders/gpu_shader_material.glsl

Context not available.
return x - i; return x - i;
} }
vec4 image_texture_lookup(sampler2D ima, vec2 co, bool use_alpha, int extension)
{
if (extension == 1 /* SHD_IMAGE_EXTENSION_EXTEND */) {
vec2 texel = 1.0 / textureSize(ima, 0);
co.x = clamp(co.x, 0.0 + texel.x * 0.5, 1.0 - texel.x * 0.5);
co.y = clamp(co.y, 0.0 + texel.y * 0.5, 1.0 - texel.y * 0.5);
}
else if (extension == 2 /* SHD_IMAGE_EXTENSION_CLIP */) {
if (co.x < 0.0 || co.y < 0.0 || co.x > 1.0 || co.y > 1.0)
return vec4(0.0);
}
vec4 color = texture2D(ima, co);
if (use_alpha)
color.rgb *= color.a;
return color;
}
/*********** NEW SHADER NODES ***************/ /*********** NEW SHADER NODES ***************/
#define NUM_LIGHTS 3 #define NUM_LIGHTS 3
Context not available.
color = vec4(1.0, 0.0, 1.0, 1.0); color = vec4(1.0, 0.0, 1.0, 1.0);
} }
void node_tex_image(vec3 co, sampler2D ima, out vec4 color, out float alpha) void node_tex_image(vec3 co,
sampler2D ima,
float use_alpha,
float extension,
out vec4 color,
out float alpha)
{ {
color = texture2D(ima, co.xy); color = image_texture_lookup(ima, co.xy, bool(use_alpha), int(extension));
alpha = color.a; alpha = color.a;
color.a = 1.0;
} }
void node_tex_image_box(vec3 texco, void node_tex_image_box(vec3 texco,
vec3 nob, vec3 nob,
sampler2D ima, sampler2D ima,
float use_alpha,
float extension,
float blend, float blend,
out vec4 color, out vec4 color,
out float alpha) out float alpha)
Context not available.
/* Desperate mode, no valid choice anyway, fallback to one side.*/ /* Desperate mode, no valid choice anyway, fallback to one side.*/
weight.x = 1.0; weight.x = 1.0;
} }
color = vec4(0); color = vec4(0);
if (weight.x > 0.0) { if (weight.x > 0.0) {
color += weight.x * texture2D(ima, texco.yz); color += weight.x * image_texture_lookup(ima,
texco.yz,
bool(use_alpha),
int(extension));
} }
if (weight.y > 0.0) { if (weight.y > 0.0) {
color += weight.y * texture2D(ima, texco.xz); color += weight.y * image_texture_lookup(ima,
texco.xz,
bool(use_alpha),
int(extension));
} }
if (weight.z > 0.0) { if (weight.z > 0.0) {
color += weight.z * texture2D(ima, texco.yx); color += weight.z * image_texture_lookup(ima,
texco.yx,
bool(use_alpha),
int(extension));
} }
alpha = color.a; alpha = color.a;
color.a = 1.0;
} }
void node_tex_image_empty(vec3 co, out vec4 color, out float alpha) void node_tex_image_empty(vec3 co, out vec4 color, out float alpha)
Context not available.
{ {
vec3 normal; vec3 normal;
vec2 tex; vec2 tex;
#ifndef USE_OPENSUBDIV #ifndef USE_OPENSUBDIV
/* remap to 0.0 - 1.0 range. This is done because OpenGL 2.0 clamps colors /* remap to 0.0 - 1.0 range. This is done because OpenGL 2.0 clamps colors
* between shader stages and we want the full range of the normal */ * between shader stages and we want the full range of the normal */
Context not available.