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wow the zoom is fonctionning

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This commit is contained in:
Mylloon 2023-05-19 13:01:20 +02:00
parent 2317ee328e
commit dda5e2cab0
Signed by: Anri
GPG key ID: A82D63DFF8D1317F
3 changed files with 27 additions and 10 deletions
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14
shaders/zoom_in.fs
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@ -1,10 +1,18 @@
#version 330
uniform sampler2D tex;
uniform sampler2D tex0;
uniform sampler2D tex1;
uniform float zoom;
in vec2 vsoTexCoord;
out vec4 fragColor;
void main(void) {
fragColor = texture(tex, vsoTexCoord);
void main() {
vec2 center = vec2(0.5);
vec2 zoomedTexCoord = mix(center, vsoTexCoord, zoom);
vec4 color1 = texture(tex0, vsoTexCoord);
vec4 color2 = texture(tex1, zoomedTexCoord);
fragColor = mix(color1, color2, smoothstep(0., 1., zoom));
}

5
shaders/zoom_in.vs
View file

@ -3,12 +3,9 @@
layout(location = 0) in vec3 vsiPosition;
layout(location = 2) in vec2 vsiTexCoord;
uniform float zoomAmount;
out vec2 vsoTexCoord;
void main(void) {
gl_Position = vec4(vsiPosition, 1.0);
vsoTexCoord = vec2(vsiTexCoord.s * zoomAmount, vsiTexCoord.t * zoomAmount);
vsoTexCoord = vsiTexCoord;
}

18
src/animations.c
View file

@ -84,11 +84,23 @@ static void zoomin_draw(void (*a0)(int), void (*a1)(int), Uint32 t, Uint32 et,
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
_zoomin_tId, 0);
glDisable(GL_DEPTH_TEST);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, _zoomin_tex[0]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, _zoomin_tex[1]);
glUseProgram(_zoomin_pId);
glUniform1f(glGetUniformLocation(_zoomin_pId, "zoomAmount"),
(GLfloat)et / (GLfloat)t);
glUniform1i(glGetUniformLocation(_zoomin_pId, "tex"), 0);
GLfloat zoom = (GLfloat)et / (GLfloat)t;
glUniform1f(glGetUniformLocation(_zoomin_pId, "zoom"), (1.f - zoom));
glUniform1i(glGetUniformLocation(_zoomin_pId, "tex1"), 0);
glUniform1i(glGetUniformLocation(_zoomin_pId, "tex0"), 1);
gl4dgDraw(_quadId);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
}
static void zoomin_deinit(void) {