ä t s r r ModelViewProjectionMatrix void main(void) { gl_position = gl_modelviewprojectionmatrix * gl_vertex; }

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Antonino Mazzoni
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1 r r r r r ür t r r st ts ts ss s s r rt t r r rt 3 rs r t 3 r t r r ür3 s r s t s ä r s r rt 3 r ö r 3 ör rs r s t3t t tät t r 3 r t r r r t rt s t r rs t r t st s r r t t r rs r s r rs 3 rs st r t rs t r 3 ö s s s s t t r ö st r s r r t t r r2 r t s r s tt t s r r3 ü r r t t t r ür tt r s t r s s Pr r s t r t s P t ür ÿt s t r st r s t3 3 t s s r t t s r ür s r 3 r P 3 rst 3 ö r 3 ä st r t t t2 s r s r rt st s tr s st r s st t 3 r ü st t s 3 s s t3t Pr t r s ÿ t 1t r rt Pr t s tt r r ä r räs t r ür s r r 3 r t t3t ts r r ü s t sr t röÿ s t rt t3t tq r s t s r t ässt s r P t str t s r är tt r

2 2 s r P s r ts s tr s Pr t t t rs r t s s r r st t s ÿ r s r rt 1 r ü s t P s t tr s r rt r st r r t r Pr t s r t s rt t r t r rt tt r r t r ü r t är r t r rt rt ÿ ä r s r 3 s r r ts r rst P s r t r Pr t st s rt s rt s s trä t r rt 1 s2 t ür 3 ö r t t rs r Pr t s t rs 3 ss2st s r t s2st r r3 st t 3 r üss s tr s r rt r s ü r t r rt 1 r rt 1 r P s t r 3 r r t 3 s s ö s r r r s P s t s r t ü r 3 ör Pr t 3 ä st rt s r q s r tr s r rt s P s t r r t 3 s t t t s ÿ st r s r ss r tt r r t ü r s ä r rt s r t r 3 s r s r r st r s s s s r r rt r s tt r r s r t s rt r ür r t st rt 1 r t r t r rt r tt s s ür rt 1 r t r t r r t st r s r s r 3 ss ür r t t r rt rt r r r t r st t r ür s r t s t r rt rt r r r s t r rt r rt s r s r s tr t t s s s ö t r s r t st r s r r r s t s r s r t ÿ Ü r r r Pr t str t ü r tt r P r 3 t s st s t t r t r s st s t t r s rt s t t ss P r t r s r t r s s rä rt r

3 str t ü r tt r r P s r r rt r ür rt 1 r t r s s P s r s tt r t r r t r s s s t r r t r s ÿ rt s r t r st t r s s 3 t r r 3 3 s t t st s st s t t 3 s ä t Pr r ss st s r 3 s t s ÿ t s r t r t st r t r ü r rt 1 r t r r st rt t3t ür st t s r st s rs s rt 1 s r t rs rt 1 r r r ür r rt s P s t r t void main(void) { gl_position = gl_modelviewprojectionmatrix * gl_vertex; } P s t gl_position ä t 3 r t P s t gl_vertex 3 r tt st s 3 s st r r s s rt2 s t r s t t2 vec4 gl_position r r s s P s t s gl_vertex ä t s r r ModelViewProjectionMatrix t st r t r 3 r t st t s r ür s t r t r ö s s P 1 t r r t r s t3t r s void main(void) { gl_fragcolor = vec4(1.0, 0.0, 0.0, 1.0); } s s s t3 r r t r t r t r vec4 t ä t r r t (rot, grün, blau, alpha) t r s tt s s 3 rs r 3 r t ür tt r 3 r r t t r tr 3 s t 3 ä st r 3 r r ü st t rt2 t t r s s vec2 vec3 vec4 t r r s ss s t t t s r

4 vec3 v1, v2; vec3 v3 = v1 + v2; ür Pr r r r t s ö t t rt2 s t s t 3 ö r t r t r P s t 1t r t rs r r t r t r ü r ts r ttr t vec4 col, pos, tex; vec4 col2 = vec4(col.r, col.g, col.b, col.a); //Farbe vec4 pos2 = vec4(pos.x, pos.y, pos.z, pos.w); //Position vec4 tex2 = vec4(tex.s, tex.t, tex.p, tex.q); //Textur r st t r s ü t r t t r r r t rt2 r r t s t r s ü r 3 ö s r r vec2 redgreen = col.rg; vec3 pos_xyz = pos.xyz; r t s s s r P s t st ö vec4 v2 = v.xxyy; r r r t s r s t t s t s t r t r 3 r s r t r rs vec4 v2 = v.xgba; 2 s r ü r str t r ö r 3 t s ö t t vec3 coord_xyz = vec3(1.0f, 0.0f, -0.5f); vec4 coord_xyzw = vec4(coord_xyz, 1.0f); r r s ÿ s ür 3 r vec4 v = vec2(1.0f, 2.0f, 3.0f, 4.0f); float f = v[2]; // liefert Element 3.0f v.xw = vec2(8.0f, 9.0f); t3t s trä t r t r v rt (8.0f, 2.0f, 3.0f, 9.0f) r t tr 3 s s s tr 3 t r s s s r rt t t öst mat4 M = mat4(3.0); // Diagonale wird auf 3.0 gesetzt vec4 v = M[1]; // zweite Spalte wird kopiert s t st r 3 s s r t s s st r s

5 r s r s Pr r s 3 st ä r t Pr r rs r st s s ö Pr r t t s3 r s r 3 t TranslateMatrix ScaleMatrix s s t r ts r tr 1 r3 t rt 1 r rst t r ö mat4 TranslateMatrix(const in vec3 t){ return mat4(1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, t.x, t.y, t.z, 1.0f); } mat4 ScaleMatrix(const in vec3 s){ return mat4(s.x, 0.0f, 0.0f, 0.0f, 0.0f, s.y, 0.0f, 0.0f, 0.0f, 0.0f, s.z, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f); } void main(void) { float sfac = 0.5f; mat4 SCALE_M = ScaleMatrix(vec3(sFac, sfac, sfac)); vec4 res = SCALE_M * vec3(1.0f, -1.0f, 2.0f);... } r main t r 3 ä st r s tr 1 SCALE_M r3 t s ÿ t t r t 3 rt t s r r t ö r ü rs t r Pr r r r r Pr r s tt rst r t tt r r t r r t r 3 üss r ür rt 1 r t r 3 ä st tr String vertshader = "void main(void) {"+ " gl_position = gl_modelviewprojectionmatrix * gl_vertex;"+ "}"; String fragshader = "void main(void) {"+ " gl_fragcolor = vec4(1.0, 0.0, 0.0, 1.0);"+ "}"; s tt r s ät r r t r r r rt rt Ü rs t 3 s t r r Pr r t 3 t r 3 r tt t s 1 r s r tt ür rt 1 r t r r ts r t3t r r t r3 ts r tt tt r

tt r r r 3 tt ür rt 1 r t r s r ts 3 s r r t t r r r t rt r r s t Pr r t r ü t int shaderobjectv = glcreateshader(gl_vertex_shader); glshadersource(shaderobjectv, vertshader);

6 tt r r r 3 tt ür rt 1 r t r s r ts 3 s r r t t r r r t rt r r s t Pr r t r ü t int shaderobjectv = glcreateshader(gl_vertex_shader); glshadersource(shaderobjectv, vertshader); glcompileshader(shaderobjectv); int shaderobjectf = glcreateshader(gl_fragment_shader); glshadersource(shaderobjectf, fragshader); glcompileshader(shaderobjectf); s ÿ r Pr r t r3 t r t ü r t glattachshader r ü t int programobject = glcreateprogram(); glattachshader(programobject, shaderobjectv); glattachshader(programobject, shaderobjectf); gllinkprogram(programobject); t gluseprogramm ö r s rst t r Pr r r rt r gluseprogram(programobject); r P t s r r t r rt 1 r t r

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