OpenGL Error #6

New Issue

2014-04-03T00:35:55+02:00

lepz0r commented

2014-04-03 00:35:55 +02:00

(Migrated from github.com)

Pink screen when i start the terminal and when i start it with another terminal

I'm running kubuntu 12.04

loadAllColorSchemes 
QOpenGLShader::compile(Fragment): 0:43(17): error: assignment to read-only variable 'noise_strength'

*** Problematic Fragment shader source code ***
#define lowp
#define mediump
#define highp

            uniform sampler2D source;
            uniform highp float qt_Opacity;
            uniform highp float time;
            uniform highp vec2 txt_Size;
            varying highp vec2 qt_TexCoord0;

            uniform highp vec4 font_color;
            uniform highp vec4 background_color;
            uniform highp float deltax;
            uniform highp float deltay;
        uniform highp sampler2D bloomSource;
        uniform highp float noise_strength;
        uniform highp float screen_distorsion;
        uniform highp float glowing_line_strength;
        varying lowp float brightness;
        varying lowp float horizontal_distortion;
    highp float rand(vec2 co)
    {
        highp float a = 12.9898;
        highp float b = 78.233;
        highp float c = 43758.5453;
        highp float dt= dot(co.xy ,vec2(a,b));
        highp float sn= mod(dt,3.14);
        return fract(sin(sn) * c);
    }

    float stepNoise(vec2 p){
        vec2 newP = p * txt_Size*0.5;
        return rand(floor(newP) + fract(time / 100.0));
    }
        float randomPass(vec2 coords){
            return fract(smoothstep(-0.2, 0.0, coords.y - 3.0 * fract(time * 0.0001))) * glowing_line_strength;
        }void main() {vec2 cc = vec2(0.5) - qt_TexCoord0;float distance = length(cc);
            float distortion = dot(cc, cc) * screen_distorsion;
            vec2 coords = (qt_TexCoord0 - cc * (1.0 + distortion) * distortion);
            float h_distortion = 0.5 * sin(time*0.001 + coords.y*10.0*fract(time/10.0));
            h_distortion += 0.5 * cos(time*0.04 + 0.03 + coords.y*50.0*fract(time/10.0 + 0.4));
            coords.x = coords.x + h_distortion * horizontal_distortion;
                noise_strength += horizontal_distortion * 0.5;float color = texture2D(source, coords).r;
            color += texture2D(bloomSource, coords).r *1.5;
            color += stepNoise(coords) * noise_strength * (1.0 - distance * distance * 2.0);
            color += randomPass(coords) * glowing_line_strength;vec3 finalColor = mix(background_color, font_color, color).rgb;finalColor = mix(finalColor * 1.1, vec3(0.0), 1.2 * distance * distance);
            finalColor = mix(finalColor, vec3(0.0), brightness);
        gl_FragColor = vec4(finalColor *1.25, 1.0);
    } 
***
QQuickCustomMaterialShader: Shader compilation failed:
"0:43(17): error: assignment to read-only variable 'noise_strength'
" 
QOpenGLShader::compile(Fragment): 0:28(7): error: type mismatch
0:30(17): error: too many parameters to `vec4' constructor

*** Problematic Fragment shader source code ***
#define lowp
#define mediump
#define highp

                            uniform sampler2D source;
                            uniform sampler2D normals;
                            uniform highp float screen_distorsion;
                            uniform highp float ambient_light;

                            uniform vec4 reflection_color;
                            varying lowp float brightness;

                            varying highp vec2 qt_TexCoord0;

                            vec2 distortCoordinates(vec2 coords){
                                vec2 cc = coords - vec2(0.5);
                                float dist = dot(cc, cc) * screen_distorsion;
                                return (coords + cc * (1.0 + dist) * dist);
                            }

                            void main(){
                                vec2 coords = distortCoordinates(qt_TexCoord0);
                                vec4 txt_color = texture2D(source, coords);
                                vec4 txt_normal = texture2D(normals, coords);
                                vec3 normal = normalize(txt_normal.rgb * 2.0 - 1.0);
                                vec3 light_dir = normalize(vec3(0.5,0.5, 0.0) - vec3(qt_TexCoord0, 0.0));
                                float reflection = (dot(normal, light_dir) * 0.4 + 0.2) * brightness;
                                vec3 final_color = reflection_color * reflection * 0.5;
                                final_color += txt_color * ambient_light;
                                gl_FragColor = vec4(final_color * txt_normal.a, txt_color.a);
                            } 
***
QQuickCustomMaterialShader: Shader compilation failed:
"0:28(7): error: type mismatch
0:30(17): error: too many parameters to `vec4' constructor
"

Pink screen when i start the terminal and when i start it with another terminal I'm running kubuntu 12.04 ``` loadAllColorSchemes QOpenGLShader::compile(Fragment): 0:43(17): error: assignment to read-only variable 'noise_strength' *** Problematic Fragment shader source code *** #define lowp #define mediump #define highp uniform sampler2D source; uniform highp float qt_Opacity; uniform highp float time; uniform highp vec2 txt_Size; varying highp vec2 qt_TexCoord0; uniform highp vec4 font_color; uniform highp vec4 background_color; uniform highp float deltax; uniform highp float deltay; uniform highp sampler2D bloomSource; uniform highp float noise_strength; uniform highp float screen_distorsion; uniform highp float glowing_line_strength; varying lowp float brightness; varying lowp float horizontal_distortion; highp float rand(vec2 co) { highp float a = 12.9898; highp float b = 78.233; highp float c = 43758.5453; highp float dt= dot(co.xy ,vec2(a,b)); highp float sn= mod(dt,3.14); return fract(sin(sn) * c); } float stepNoise(vec2 p){ vec2 newP = p * txt_Size*0.5; return rand(floor(newP) + fract(time / 100.0)); } float randomPass(vec2 coords){ return fract(smoothstep(-0.2, 0.0, coords.y - 3.0 * fract(time * 0.0001))) * glowing_line_strength; }void main() {vec2 cc = vec2(0.5) - qt_TexCoord0;float distance = length(cc); float distortion = dot(cc, cc) * screen_distorsion; vec2 coords = (qt_TexCoord0 - cc * (1.0 + distortion) * distortion); float h_distortion = 0.5 * sin(time*0.001 + coords.y*10.0*fract(time/10.0)); h_distortion += 0.5 * cos(time*0.04 + 0.03 + coords.y*50.0*fract(time/10.0 + 0.4)); coords.x = coords.x + h_distortion * horizontal_distortion; noise_strength += horizontal_distortion * 0.5;float color = texture2D(source, coords).r; color += texture2D(bloomSource, coords).r *1.5; color += stepNoise(coords) * noise_strength * (1.0 - distance * distance * 2.0); color += randomPass(coords) * glowing_line_strength;vec3 finalColor = mix(background_color, font_color, color).rgb;finalColor = mix(finalColor * 1.1, vec3(0.0), 1.2 * distance * distance); finalColor = mix(finalColor, vec3(0.0), brightness); gl_FragColor = vec4(finalColor *1.25, 1.0); } *** QQuickCustomMaterialShader: Shader compilation failed: "0:43(17): error: assignment to read-only variable 'noise_strength' " QOpenGLShader::compile(Fragment): 0:28(7): error: type mismatch 0:30(17): error: too many parameters to `vec4' constructor *** Problematic Fragment shader source code *** #define lowp #define mediump #define highp uniform sampler2D source; uniform sampler2D normals; uniform highp float screen_distorsion; uniform highp float ambient_light; uniform vec4 reflection_color; varying lowp float brightness; varying highp vec2 qt_TexCoord0; vec2 distortCoordinates(vec2 coords){ vec2 cc = coords - vec2(0.5); float dist = dot(cc, cc) * screen_distorsion; return (coords + cc * (1.0 + dist) * dist); } void main(){ vec2 coords = distortCoordinates(qt_TexCoord0); vec4 txt_color = texture2D(source, coords); vec4 txt_normal = texture2D(normals, coords); vec3 normal = normalize(txt_normal.rgb * 2.0 - 1.0); vec3 light_dir = normalize(vec3(0.5,0.5, 0.0) - vec3(qt_TexCoord0, 0.0)); float reflection = (dot(normal, light_dir) * 0.4 + 0.2) * brightness; vec3 final_color = reflection_color * reflection * 0.5; final_color += txt_color * ambient_light; gl_FragColor = vec4(final_color * txt_normal.a, txt_color.a); } *** QQuickCustomMaterialShader: Shader compilation failed: "0:28(7): error: type mismatch 0:30(17): error: too many parameters to `vec4' constructor " ```

Swordfish90 commented

2014-04-03 01:02:58 +02:00

(Migrated from github.com)

Thank you for the reporting!... It is definitely a problem with my shader (that for some reason didn't happen on my hardware). Now it's late here, but tomorrow I'm going to fix it.

Swordfish90 commented

2014-04-03 15:31:15 +02:00

(Migrated from github.com)

In theory it should now be fixed. When you have time retest it and let me know.

lepz0r commented

2014-04-04 01:22:47 +02:00

(Migrated from github.com)

noise_strength error is gone, but there still vec4 error

Swordfish90 commented

2014-04-04 02:36:09 +02:00

(Migrated from github.com)

Just pushed a new version, let's try with this one. There was an implicit conversion. Now I have enabled all the warnings, so hopefully I will be able to see the problems also on my machine and this won't happen again.

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Reference: seeseemelk/cool-retro-term#6