bloeys/nmage
1
0
Fork 0
mirror of https://github.com/bloeys/nmage.git synced 2025-12-29 13:28:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

VBOs+attributes+drawing with VBOs

Browse Source
This commit is contained in:
bloeys
2021-10-23 21:47:54 +04:00
parent bb9a2885e2
commit 5e3123b00e
6 changed files with 98 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
main.go
View File

@ -1,6 +1,7 @@
package main
import (
"github.com/bloeys/go-sdl-engine/buffers"
"github.com/bloeys/go-sdl-engine/input"
"github.com/bloeys/go-sdl-engine/logging"
"github.com/bloeys/go-sdl-engine/shaders"
@ -15,8 +16,9 @@ const (
var (
isRunning bool = true
window *sdl.Window
window *sdl.Window
simpleShader shaders.ShaderProgram
)
func main() {
@ -41,6 +43,8 @@ func main() {
initOpenGL()
loadShaders()
buffers.HandleBuffers(simpleShader)
//Game loop
for isRunning {
@ -69,13 +73,13 @@ func initOpenGL() {
sdl.GLSetAttribute(sdl.GL_DOUBLEBUFFER, 1)
gl.ClearColor(0, 0, 0, 1)
sdl.GLSetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_COMPATIBILITY)
// sdl.GLSetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)
sdl.GLSetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)
}
func loadShaders() {
simpleShader, err := shaders.NewShaderProgram()
var err error
simpleShader, err = shaders.NewShaderProgram()
if err != nil {
logging.ErrLog.Fatalln("Failed to create new shader program. Err: ", err)
}
@ -121,17 +125,9 @@ func draw() {
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Begin(gl.TRIANGLES)
gl.Vertex3f(-0.5, 0.5, 0)
gl.Vertex3f(0.5, 0.5, 0)
gl.Vertex3f(-0.5, -0.5, 0)
gl.Vertex3f(0.5, 0.5, 0)
gl.Vertex3f(0.5, -0.5, 0)
gl.Vertex3f(-0.5, -0.5, 0)
gl.End()
simpleShader.Use()
//DRAW
gl.DrawArrays(gl.TRIANGLES, 0, 6)
window.GLSwap()
}