139 lines
2.4 KiB
Plaintext
139 lines
2.4 KiB
Plaintext
|
|
||
|
|
// eaglercraft opengl 1.3 emulation
|
||
|
|
// copyright (c) 2020 calder young
|
||
|
|
// creative commons BY-NC 4.0
|
||
|
|
|
||
|
|
#line 7
|
||
|
|
|
||
|
|
precision highp int;
|
||
|
|
precision highp sampler2D;
|
||
|
|
precision highp float;
|
||
|
|
|
||
|
|
uniform mat4 matrix_m;
|
||
|
|
uniform mat4 matrix_p;
|
||
|
|
uniform mat4 matrix_t;
|
||
|
|
|
||
|
|
#ifdef CC_VERT
|
||
|
|
|
||
|
|
in vec3 a_position;
|
||
|
|
#ifdef CC_a_texture0
|
||
|
|
in vec2 a_texture0;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_color
|
||
|
|
in vec4 a_color;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_normal
|
||
|
|
in vec4 a_normal;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_fog
|
||
|
|
out vec4 v_position;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_color
|
||
|
|
out vec4 v_color;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_texture0
|
||
|
|
out vec2 v_texture0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void main(){
|
||
|
|
vec4 pos = matrix_m * vec4(a_position, 1.0);
|
||
|
|
#ifdef CC_fog
|
||
|
|
v_position = pos;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_color
|
||
|
|
v_color = a_color;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_texture0
|
||
|
|
v_texture0 = a_texture0;
|
||
|
|
#endif
|
||
|
|
gl_Position = matrix_p * pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_FRAG
|
||
|
|
|
||
|
|
#ifdef CC_unit0
|
||
|
|
uniform sampler2D tex0;
|
||
|
|
#ifndef CC_a_texture0
|
||
|
|
uniform vec2 texCoordV0;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#ifdef CC_lighting
|
||
|
|
uniform vec3 light0Pos;
|
||
|
|
uniform vec3 light1Pos;
|
||
|
|
uniform vec3 normalUniform;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_fog
|
||
|
|
uniform vec4 fogColor;
|
||
|
|
uniform int fogMode;
|
||
|
|
uniform float fogStart;
|
||
|
|
uniform float fogEnd;
|
||
|
|
uniform float fogDensity;
|
||
|
|
uniform float fogPremultiply;
|
||
|
|
#endif
|
||
|
|
uniform vec4 colorUniform;
|
||
|
|
#ifdef CC_alphatest
|
||
|
|
uniform float alphaTestF;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_fog
|
||
|
|
in vec4 v_position;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_color
|
||
|
|
in vec4 v_color;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_normal
|
||
|
|
in vec4 v_normal;
|
||
|
|
#endif
|
||
|
|
#ifdef CC_a_texture0
|
||
|
|
in vec2 v_texture0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
out vec4 fragColor;
|
||
|
|
|
||
|
|
void main(){
|
||
|
|
#ifdef CC_a_color
|
||
|
|
vec4 color = colorUniform * v_color;
|
||
|
|
#else
|
||
|
|
vec4 color = colorUniform;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_unit0
|
||
|
|
#ifdef CC_a_texture0
|
||
|
|
color *= texture(tex0, (matrix_t * vec4(v_texture0, 0.0, 1.0)).xy).rgba;
|
||
|
|
#else
|
||
|
|
color *= texture(tex0, (matrix_t * vec4(texCoordV0, 0.0, 1.0)).xy).rgba;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_alphatest
|
||
|
|
if(color.a < alphaTestF){
|
||
|
|
discard;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_lighting
|
||
|
|
#ifdef CC_a_normal
|
||
|
|
vec3 normal = ((v_normal.xyz - 0.5) * 2.0);
|
||
|
|
#else
|
||
|
|
vec3 normal = normalUniform;
|
||
|
|
#endif
|
||
|
|
normal = normalize(mat3(matrix_m) * normal);
|
||
|
|
float ins = max(dot(normal, -light0Pos), 0.0) + max(dot(normal, -light1Pos), 0.0);
|
||
|
|
color.rgb *= min((0.4 + ins * 0.6), 1.0);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CC_fog
|
||
|
|
float dist = sqrt(dot(v_position, v_position));
|
||
|
|
float i = (fogMode == 1) ? clamp((dist - fogStart) / (fogEnd - fogStart), 0.0, 1.0) : clamp(1.0 - pow(2.718, -(fogDensity * dist)), 0.0, 1.0);
|
||
|
|
color.rgb = mix(color.rgb, fogColor.xyz, i * fogColor.a);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
fragColor = color;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|