eaglercraft-1.8/sources/resources/assets/eagler/glsl/core.vsh

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#line 2
/*
* Copyright (c) 2022-2023 lax1dude. All Rights Reserved.
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
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*
*/
in vec3 a_position3f;
#if defined(COMPILE_ENABLE_TEX_GEN) || defined(COMPILE_ENABLE_FOG)
#define _COMPILE_VARYING_POSITION
#endif
#ifdef _COMPILE_VARYING_POSITION
out vec4 v_position4f;
#endif
#ifdef COMPILE_ENABLE_TEX_GEN
out vec3 v_objectPosition3f;
#endif
#ifdef COMPILE_TEXTURE_ATTRIB
in vec2 a_texture2f;
out vec2 v_texture2f;
uniform mat4 u_textureMat4f01;
#endif
#ifdef COMPILE_COLOR_ATTRIB
in vec4 a_color4f;
out vec4 v_color4f;
#endif
#ifdef COMPILE_NORMAL_ATTRIB
in vec4 a_normal4f;
out vec3 v_normal3f;
#endif
#ifdef COMPILE_LIGHTMAP_ATTRIB
in vec2 a_lightmap2f;
out vec2 v_lightmap2f;
uniform mat4 u_textureMat4f02;
#endif
#ifdef _COMPILE_VARYING_POSITION
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uniform mat4 u_modelviewMat4f;
uniform mat4 u_projectionMat4f;
#else
uniform mat4 u_modelviewProjMat4f;
#ifdef COMPILE_NORMAL_ATTRIB
uniform mat4 u_modelviewMat4f;
#endif
#endif
#define TEX_MAT3(mat4In) mat3(mat4In[0].xyw,mat4In[1].xyw,mat4In[3].xyw)
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void main() {
#ifdef COMPILE_ENABLE_TEX_GEN
v_objectPosition3f = a_position3f;
#endif
#ifdef _COMPILE_VARYING_POSITION
v_position4f = u_modelviewMat4f * vec4(a_position3f, 1.0);
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#endif
#ifdef COMPILE_TEXTURE_ATTRIB
vec3 v_textureTmp3f = TEX_MAT3(u_textureMat4f01) * vec3(a_texture2f, 1.0);
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v_texture2f = v_textureTmp3f.xy / v_textureTmp3f.z;
#endif
#ifdef COMPILE_COLOR_ATTRIB
v_color4f = a_color4f;
#endif
#ifdef COMPILE_NORMAL_ATTRIB
v_normal3f = normalize(mat3(u_modelviewMat4f) * a_normal4f.xyz);
#endif
#ifdef COMPILE_LIGHTMAP_ATTRIB
vec3 v_lightmapTmp3f = TEX_MAT3(u_textureMat4f02) * vec3(a_lightmap2f, 1.0);
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v_lightmap2f = v_lightmapTmp3f.xy / v_lightmapTmp3f.z;
#endif
#ifdef _COMPILE_VARYING_POSITION
gl_Position = u_projectionMat4f * v_position4f;
#else
gl_Position = u_modelviewProjMat4f * vec4(a_position3f, 1.0);
#endif
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}