diff options
Diffstat (limited to 'gfx/gl/shaders')
-rw-r--r-- | gfx/gl/shaders/shadowDynamicPointStencil.fs | 16 | ||||
-rw-r--r-- | gfx/gl/shaders/shadowDynamicPointStencil.gs | 32 | ||||
-rw-r--r-- | gfx/gl/shaders/shadowDynamicPointStencil.vs | 17 |
3 files changed, 65 insertions, 0 deletions
diff --git a/gfx/gl/shaders/shadowDynamicPointStencil.fs b/gfx/gl/shaders/shadowDynamicPointStencil.fs new file mode 100644 index 0000000..57b8aa3 --- /dev/null +++ b/gfx/gl/shaders/shadowDynamicPointStencil.fs @@ -0,0 +1,16 @@ +#version 330 core +#extension GL_ARB_shading_language_420pack : enable + +layout(binding = 0) uniform sampler2D stencilDepth; +flat in vec3 scale; +in vec2 texCoord; + +void +main() +{ + float stDepth = texture(stencilDepth, texCoord).r; + if (stDepth >= 1) { + discard; + } + gl_FragDepth = gl_FragCoord.z + (stDepth * scale.z); +} diff --git a/gfx/gl/shaders/shadowDynamicPointStencil.gs b/gfx/gl/shaders/shadowDynamicPointStencil.gs new file mode 100644 index 0000000..6d707ae --- /dev/null +++ b/gfx/gl/shaders/shadowDynamicPointStencil.gs @@ -0,0 +1,32 @@ +#version 330 core +#extension GL_ARB_viewport_array : enable + +const vec2[] corners = vec2[4](vec2(-1, -1), vec2(-1, 1), vec2(1, -1), vec2(1, 1)); + +uniform mat4 viewProjection[4]; +uniform int viewProjections; +uniform vec3 sizes[4]; +uniform float size; + +in ivec3 vworldPos[]; + +flat out vec3 scale; +out vec2 texCoord; + +layout(points) in; +layout(triangle_strip, max_vertices = 16) out; + +void +main() +{ + for (gl_Layer = 0; gl_Layer < viewProjections; ++gl_Layer) { + scale = 2.0 * size / sizes[gl_Layer]; + vec4 pos = viewProjection[gl_Layer] * vec4(vworldPos[0], 1); + for (int c = 0; c < corners.length(); ++c) { + gl_Position = pos + vec4(scale.xy * corners[c], 0, 0); + texCoord = (corners[c] * 0.5) + 0.5; + EmitVertex(); + } + EndPrimitive(); + } +} diff --git a/gfx/gl/shaders/shadowDynamicPointStencil.vs b/gfx/gl/shaders/shadowDynamicPointStencil.vs new file mode 100644 index 0000000..dadf9c2 --- /dev/null +++ b/gfx/gl/shaders/shadowDynamicPointStencil.vs @@ -0,0 +1,17 @@ +#version 330 core +#extension GL_ARB_shading_language_420pack : enable + +layout(location = 0) in mat3 model; +layout(location = 3) in ivec3 worldPos; +uniform ivec3 viewPoint; +uniform vec3 centre; + +out mat3 vmodel; +out ivec3 vworldPos; + +void +main() +{ + vmodel = model; + vworldPos = worldPos - viewPoint + ivec3(centre); +} |