From 8a10bb7d0dd0cc03353bb751af25a0eca1357c9d Mon Sep 17 00:00:00 2001
From: Clay John <claynjohn@gmail.com>
Date: Tue, 26 Oct 2021 08:18:39 -0700
Subject: 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.
---
 drivers/opengl/shaders/cube_to_dp.glsl | 100 ---------------------------------
 1 file changed, 100 deletions(-)
 delete mode 100644 drivers/opengl/shaders/cube_to_dp.glsl

(limited to 'drivers/opengl/shaders/cube_to_dp.glsl')

diff --git a/drivers/opengl/shaders/cube_to_dp.glsl b/drivers/opengl/shaders/cube_to_dp.glsl
deleted file mode 100644
index 1612ec3d5a..0000000000
--- a/drivers/opengl/shaders/cube_to_dp.glsl
+++ /dev/null
@@ -1,100 +0,0 @@
-/* clang-format off */
-[vertex]
-
-#ifdef USE_GLES_OVER_GL
-#define lowp
-#define mediump
-#define highp
-#else
-precision mediump float;
-precision mediump int;
-#endif
-
-attribute highp vec4 vertex_attrib; // attrib:0
-/* clang-format on */
-attribute vec2 uv_in; // attrib:4
-
-varying vec2 uv_interp;
-
-void main() {
-	uv_interp = uv_in;
-	gl_Position = vertex_attrib;
-}
-
-/* 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
-
-uniform highp samplerCube source_cube; //texunit:0
-/* clang-format on */
-varying vec2 uv_interp;
-
-uniform bool z_flip;
-uniform highp float z_far;
-uniform highp float z_near;
-uniform highp float bias;
-
-void main() {
-	highp vec3 normal = vec3(uv_interp * 2.0 - 1.0, 0.0);
-	/*
-	if (z_flip) {
-		normal.z = 0.5 - 0.5 * ((normal.x * normal.x) + (normal.y * normal.y));
-	} else {
-		normal.z = -0.5 + 0.5 * ((normal.x * normal.x) + (normal.y * normal.y));
-	}
-	*/
-
-	//normal.z = sqrt(1.0 - dot(normal.xy, normal.xy));
-	//normal.xy *= 1.0 + normal.z;
-
-	normal.z = 0.5 - 0.5 * ((normal.x * normal.x) + (normal.y * normal.y));
-	normal = normalize(normal);
-	/*
-	normal.z = 0.5;
-	normal = normalize(normal);
-	*/
-
-	if (!z_flip) {
-		normal.z = -normal.z;
-	}
-
-	//normal = normalize(vec3( uv_interp * 2.0 - 1.0, 1.0 ));
-	float depth = textureCube(source_cube, normal).r;
-
-	// absolute values for direction cosines, bigger value equals closer to basis axis
-	vec3 unorm = abs(normal);
-
-	if ((unorm.x >= unorm.y) && (unorm.x >= unorm.z)) {
-		// x code
-		unorm = normal.x > 0.0 ? vec3(1.0, 0.0, 0.0) : vec3(-1.0, 0.0, 0.0);
-	} else if ((unorm.y > unorm.x) && (unorm.y >= unorm.z)) {
-		// y code
-		unorm = normal.y > 0.0 ? vec3(0.0, 1.0, 0.0) : vec3(0.0, -1.0, 0.0);
-	} else if ((unorm.z > unorm.x) && (unorm.z > unorm.y)) {
-		// z code
-		unorm = normal.z > 0.0 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 0.0, -1.0);
-	} else {
-		// oh-no we messed up code
-		// has to be
-		unorm = vec3(1.0, 0.0, 0.0);
-	}
-
-	float depth_fix = 1.0 / dot(normal, unorm);
-
-	depth = 2.0 * depth - 1.0;
-	float linear_depth = 2.0 * z_near * z_far / (z_far + z_near - depth * (z_far - z_near));
-	gl_FragDepth = (linear_depth * depth_fix + bias) / z_far;
-}
-- 
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