diff options
Diffstat (limited to 'source/blender/draw/modes/shaders/object_lightprobe_grid_vert.glsl')
-rw-r--r-- | source/blender/draw/modes/shaders/object_lightprobe_grid_vert.glsl | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/source/blender/draw/modes/shaders/object_lightprobe_grid_vert.glsl b/source/blender/draw/modes/shaders/object_lightprobe_grid_vert.glsl new file mode 100644 index 00000000000..d9616076dbf --- /dev/null +++ b/source/blender/draw/modes/shaders/object_lightprobe_grid_vert.glsl @@ -0,0 +1,35 @@ + +in vec3 pos; +in vec3 nor; + +uniform mat4 ViewProjectionMatrix; + +uniform float sphere_size; +uniform ivec3 grid_resolution; +uniform vec3 corner; +uniform vec3 increment_x; +uniform vec3 increment_y; +uniform vec3 increment_z; + +uniform int call_id; /* we don't want the builtin callId which would be 0. */ +uniform int baseId; + +flat out uint finalId; + +void main() +{ + vec3 ls_cell_location; + /* Keep in sync with update_irradiance_probe */ + ls_cell_location.z = float(gl_InstanceID % grid_resolution.z); + ls_cell_location.y = float((gl_InstanceID / grid_resolution.z) % grid_resolution.y); + ls_cell_location.x = float(gl_InstanceID / (grid_resolution.z * grid_resolution.y)); + + vec3 ws_cell_location = corner + + (increment_x * ls_cell_location.x + + increment_y * ls_cell_location.y + + increment_z * ls_cell_location.z); + + gl_Position = ViewProjectionMatrix * vec4(pos * 0.02 * sphere_size + ws_cell_location, 1.0); + + finalId = uint(baseId + call_id); +} |