virtualx-engine/drivers/gles3/shaders/canvas_shadow.glsl
Clay John 8a10bb7d0d
Use OpenGL 3.3 core profile instead of compatibility profile
- Rename OpenGL to GLES3 in the source code per community feedback.
  - The renderer is still exposed as "OpenGL 3" to the user.
- Hide renderer selection dropdown until OpenGL support is more mature.
  - The renderer can still be changed in the Project Settings or using
    the `--rendering-driver opengl` command line argument.
- Remove commented out exporter code.
- Remove some OpenGL/DisplayServer-related debugging prints.
2021-10-31 15:56:45 +01:00

60 lines
1.2 KiB
GLSL

/* clang-format off */
[vertex]
#ifdef USE_GLES_OVER_GL
#define lowp
#define mediump
#define highp
#else
precision highp float;
precision highp int;
#endif
layout(location = 0) highp vec3 vertex;
uniform highp mat4 projection_matrix;
/* clang-format on */
uniform highp mat4 light_matrix;
uniform highp mat4 world_matrix;
uniform highp float distance_norm;
out highp vec4 position_interp;
void main() {
gl_Position = projection_matrix * (light_matrix * (world_matrix * vec4(vertex, 1.0)));
position_interp = gl_Position;
}
/* clang-format off */
[fragment]
#ifdef USE_GLES_OVER_GL
#define lowp
#define mediump
#define highp
#else
#if defined(USE_HIGHP_PRECISION)
precision highp float;
precision highp int;
#else
precision mediump float;
precision mediump int;
#endif
#endif
in highp vec4 position_interp;
/* clang-format on */
void main() {
highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0; // bias
#ifdef USE_RGBA_SHADOWS
highp vec4 comp = fract(depth * vec4(255.0 * 255.0 * 255.0, 255.0 * 255.0, 255.0, 1.0));
comp -= comp.xxyz * vec4(0.0, 1.0 / 255.0, 1.0 / 255.0, 1.0 / 255.0);
frag_color = comp;
#else
frag_color = vec4(depth);
#endif
}